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## University Calculus: Early Transcendentals (3rd Edition)
$\frac{1}{2}tan^{2}x+C$
Substitute $u= tan x$ so that $dx=\frac{du}{sec^{2}x}$ in the given integral. Then, $\int sec^{2}xtanxdx=\int sec^{2}x\, u\frac{du}{sec^{2}x}$ $=\int udu= \frac{u^{2}}{2}+C$ Undoing substitution, we get $\int sec^{2}x tanxdx= \frac{1}{... | HuggingFaceTB/finemath | |
## AmberCat21 3 years ago 2/3x=20
1. nubeer
3x = 2/20 3x = 1 /10 x= 1/30
2. AmberCat21
can u explain further pls?
3. nubeer
|dw:1350443875520:dw| do u get now?
4. AmberCat21
actually what I meant was (2/3)x=20
5. nubeer
oopps sorry..
6. nubeer
|dw:1350444131237:dw|
7. AmberCat21
why 3/2?
8. nubeer
u hav... | HuggingFaceTB/finemath | |
# $a_n\rightarrow a, f(a_n)\rightarrow b$ imply $f(a)=b$?
$$f:\mathbb{R}\rightarrow\mathbb{R}$$ is a function and $$a_n\rightarrow a, f(a_n)\rightarrow b$$. Then does the existence of $$\lim\limits_{n\rightarrow\infty}^{}f(a_n)$$ imply $$f(a)=b$$?
• You write $f(a_n)\rightarrow b$. To me, that notation already implie... | HuggingFaceTB/finemath | |
# Buy Maximum Stocks if i stocks can be bought on i-th day
In a stock market, there is a product with its infinite stocks. The stock prices are given for N days, where arr[i] denotes the price of the stock on the ith day. There is a rule that a customer can buy at most i stock on the ith day. If the customer has an am... | HuggingFaceTB/finemath | |
## Solution to Puzzle #187: Sum as 100
I am back after a break of two weekends in-between during which I moved from Gurgaon to Bangalore. Lets begin with the answer to this puzzle. I received many correct answers – from Anahat Prakash, Deepak Goyal (my brother) and Pratik Poddar. Well done all!
The answer is “not pos... | HuggingFaceTB/finemath | |
# dividing complex numbers calculator
August 31, 2019
In complex fractions either or both the numerator and the denominator contain fractions or mixed numbers. An easy to use calculator that divides two complex numbers. Example 1. Auto Calculate. 4. This page will show you how to multiply them together correctly. Div... | HuggingFaceTB/finemath | |
# 1 is what percent of 37?
## (1 is 2.7027 percent of 37)
### 1 is 2.7027 percent of 37. Explanation: What does 1 percent or 1% mean?
Percent (%) is an abbreviation for the Latin “per centum”, which means per hundred or for every hundred. So, 1% means 1 out of every 100.
### Methods to calculate "1 is what percent ... | HuggingFaceTB/finemath | |
# How to evaluate the series $1+\frac34+\frac{3\cdot5}{4\cdot8}+\frac{3\cdot5\cdot7}{4\cdot8\cdot12}+\cdots$
How can I evaluate the following series: $$1+\frac{3}{4}+\frac{3\cdot 5}{4\cdot 8}+\frac{3\cdot 5\cdot 7}{4\cdot 8\cdot 12}+\frac{3\cdot 5\cdot 7\cdot 9}{4\cdot 8\cdot 12\cdot 16}+\cdots$$ In one book I saw thi... | HuggingFaceTB/finemath | |
# Skip counting by 7s
For learning skip counting by 7s, be sure that your child should know how to count the next number from the previous number. For that reinforce earlier counting skills by chanting them out loud with your student.
Counting by 7s means adding seven to previous number or jump by 7. Each number is 7 ... | HuggingFaceTB/finemath | |
# Sum of Infinite Series via Unit Step Integration? Or Not?
1. Oct 12, 2008
### Oijl
1. The problem statement, all variables and given/known data
[sum of; n=1; to infinity] ((2y)^n)/(n(n!))
2. Relevant equations
3. The attempt at a solution
If there were a way to find the improper integral of f(x) = ((2c)^x)/(x(x!... | HuggingFaceTB/finemath | |
By Kirchhoff's second law, the net voltage drop across a closed loop equals the voltage impressed (). This section deals with applications of differential equations to curves. 2) They are also used to describe the change in return on investment over time. 2. Your study of differential equations and its applications wil... | open-web-math/open-web-math | |
# Epsilon delta continuity proof for a basic function
Take the function $f(x) = e^{x}$ and I want to prove this is continuous at $x=0$ using epsilon-delta definition.
ie. $\forall \epsilon>0, \exists\delta>0 \text{ s.t. } |x - 0| < \delta \implies |e^{x}-1| < \epsilon$
So $|e^{x}-1| < |e^{x}| + |1| = e^{x}+1$
Now $... | open-web-math/open-web-math | |
Home » Math Theory » Decimals » Hundredths in a Decimal
# Hundredths in a Decimal
## Introduction
The word decimal comes from the Latin word “Decem” meaning 10. . In algebra, a decimal number can be defined as a number whose complete part and the fractional part are separated by a decimal point. Before we learn what... | HuggingFaceTB/finemath | |
# How to manipulate gauge theory in Mathematica?
I want to know if there is a way of typing into Mathematica an expression like the following,
$$\epsilon^{\mu \nu \lambda} f^{abc} A^a_\mu A^b_\nu A^c_\lambda + g\epsilon^{\mu \nu \lambda} A^a_\mu \partial_\lambda A^a_\nu + \bar{\psi}(\gamma^\mu(\partial_\mu + gA^a_\mu... | HuggingFaceTB/finemath | |
#### Provide solution for rd sharma math class class 12 chapter Algebra of matrices exercise 4.3 question 13
Hence, prove $A B=B A=0_{3 \times 3}$
Hint: matrix multiplication is only possible, when the number of columns of first matrix is equal to the number of rows of second matrix.
Given: $A=\left[\begin{array}{cc... | HuggingFaceTB/finemath | |
# Martian gravity
There is a lot of talk about Mars right now, and understandably so. The flight of Ingenuity today was awesome. As Daniel Oberhaus pointed out on Twitter,
… the atmosphere on the surface of Mars is so thin that it’s the equivalent of flying at ~100k feet on Earth.
No rotorcraft, piloted or uncrewed,... | HuggingFaceTB/finemath | |
Q:
# What is the hypotenuse angle theorem?
A:
The Hypotenuse Angle Theorem states that if one of the acute angles and the hypotenuse of a right triangle are congruent to the corresponding acute angle and hypotenuse of a second triangle, \this proves that the two triangles are also congruent. In math, this theorem is... | HuggingFaceTB/finemath | |
### If one acute angle is double than the other in a right-angled triangle, prove that the hypotenuse is double the smallest side.
Answer:
$AC = 2BC$
Step by Step Explanation:
1. Let $\triangle ABC$ be the right-angled triangle with $\angle B = 90^ \circ$ and $\angle ACB = 2 \angle CAB$.
Let $\angle CAB$ be equal t... | HuggingFaceTB/finemath | |
# What's the date 5 months from today?
## Friday November 15, 2024
0
5 months from today is 15 Nov 2024, a Friday. Adding 5 months in the future is usually just counting from June; however, longer calculations will push us from 2024 into 2025. Even if the calculation remains within the year, I usually take note of t... | HuggingFaceTB/finemath | |
# How to evaluate the integral using integration by parts with the indicated choices of u and dv. int (lny)/sqrt(y) dy ?
Refer to explanation
#### Explanation:
Using integration by parts we have
int lny/sqrtydy=int 2*lny*(sqrty)'dy=2lny*sqrty-2int sqrty*(lny)'dy= 2lnysqrty-2int sqrty*(1/y)dy=2lnysqrty-2int(1/sqrty)... | HuggingFaceTB/finemath | |
# If $$\overrightarrow a$$ is a nonzero vector of magnitude $" a "$ and $$λ$$ a nonzero scalar, then $$λ$$ $$\overrightarrow a$$ is unit vector if
$\begin{array} (A)\; λ = 1 \quad & (B)\; λ = -1 \quad & (C)\; a = |\; λ\; | \quad & (D)\; a = 1/|\; λ\; | \end{array}$
Toolbox:
• A vector is said to be unit vector if its... | HuggingFaceTB/finemath | |
Calculate the volume of chlorine that is required to convert 1 kg of iron in ferric 3 chloride at standard conditions?
Apr 28, 2016
Approx. $600 \cdot L$ at $\text{STP}$.
Explanation:
$F e \left(s\right) + \frac{3}{2} C {l}_{2} \left(g\right) \rightarrow F e C {l}_{3} \left(s\right)$
Moles of iron $=$ $\frac{1000 ... | HuggingFaceTB/finemath | |
# Angular diameter result confirmation
Not being a math-minded person at all, however basic it might appear to be to all of you in this particular question, I would like to get the following calculation confirmed.
I'm trying to calculate the angular diameter of two natural satellites orbiting a planet, as seen from t... | HuggingFaceTB/finemath | |
# What is the Greatest Common Factor of 40 and 49?
Greatest common factor (GCF) of 40 and 49 is 1.
GCF(40,49) = 1
We will now calculate the prime factors of 40 and 49, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 40 and 49.
GCF Calculat... | HuggingFaceTB/finemath | |
# Double Integrals: cartesian -> polar and solve
Double Integrals: cartesian --> polar and solve
here is everything: #19: I am stuck...This is to be solved using cylindrical polar coordinates and a double integral. I understand simpler ones such as find the volume of the solid under the cone z= sqrt(x^2 + Y^2) and ab... | HuggingFaceTB/finemath | |
# How does taking modulo 1 make sense?
I need some help understanding the problem statement in CLRS 11.3-4 pg 269. It says:
Consider a hash table of size $m = 1000$ and a corresponding hash function $h(k) =\left \lfloor m(kA \bmod 1) \right \rfloor$ for $A = (\sqrt5 - 1)/2$. Compute the locations to which the keys 61... | HuggingFaceTB/finemath | |
# Time Series Classification and Clustering
In a typical classification problem you are given a set of input features and a set of discrete output classes and you want to model the relationship between the two. There is a myriad of classification algorithms that you could use for this problem - SVMs, Naive Bayes, k-NN... | HuggingFaceTB/finemath | |
The OEIS is supported by the many generous donors to the OEIS Foundation.
Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
A221309 Numbers m such that no subset of {m-1, m, m+1} sums up to a prime number. 3
25, 77, 85, 92, 93, 94, 118, 122, 123, 124, 133, 143, 144, 145, 160, 161, 170, 171, 185,... | HuggingFaceTB/finemath | |
# UltimaCalc
## Roots of Polynomials with UltimaCalc
Roots of Polynomials with UltimaCalc
UltimaCalc contains a polynomial root calculator that can calculate the roots of a polynomial up to the 10th order. The roots are the values of x for which a polynomial in x has the value 0. Thus, these values of x are also cal... | HuggingFaceTB/finemath | |
PDA
View Full Version : Math conundrum
Normandy6644
2005-May-04, 06:09 PM
Okay, this seems way too basic to be confusing, but I haven't come up with a decent answer yet.
What is sqrt(-1)*sqrt(-1)?
There seem to be two ways of looking at it:
sqrt(-1)*sqrt(-1)=sqrt[(-1)*(-1)]=1
or
sqrt(-1)*sqrt(-1)=i*i=-1
I'm sur... | HuggingFaceTB/finemath | |
# Why reference number is not sorted? [duplicate]
\documentclass[usenames,dvipsnames]{beamer}
\usepackage{xcolor}
\usepackage{tikz}
\usepackage{listings}
\usepackage{algpseudocode}
\usefonttheme[onlymath]{serif}
\usepackage{amsmath}
\algnewcommand\algorithmicinput{\textbf{Input:}}
\algnewcommand\algorithmicoutput{\te... | open-web-math/open-web-math | |
+0
# How calculate x from
0
397
2
How calculate x from
2=-20 log10(1/1+x^2)
Guest Apr 5, 2017
#1
+1
Solve for x:
2 = -(20 log(x^2 + 1))/(log(10))
2 = -(20 log(x^2 + 1))/(log(10)) is equivalent to -(20 log(x^2 + 1))/(log(10)) = 2:
-(20 log(x^2 + 1))/(log(10)) = 2
Divide both sides by -20/(log(10)):
log(x^2 + 1) ... | HuggingFaceTB/finemath | |
Linear Math
• Dec 18th 2007, 04:21 PM
linearmath
Linear Math
questions 1: the three vectors x, y, z have real-valued components and form the sides of a triangle. Prove the Law of Cosines for these vectors, i.e...that
|z|^2 = |x|^2 + |y|^2 - 2*x*y = |x|^2 + |y|^2 - 2*x*y*cos(theta)
where theta is the angle between ve... | HuggingFaceTB/finemath | |
## Conversion formula
The conversion factor from centimeters to inches is 0.39370078740157, which means that 1 centimeter is equal to 0.39370078740157 inches:
1 cm = 0.39370078740157 in
To convert 41.1 centimeters into inches we have to multiply 41.1 by the conversion factor in order to get the length amount from ce... | HuggingFaceTB/finemath | |
Combining the power rule with the sum and constant multiple rules permits the computation of the derivative of any polynomial. This proof is validates the power rule for all real numbers such that the derivative . The Power Rule, one of the most commonly used rules in Calculus, says: The derivative of x n is nx (n-1) E... | open-web-math/open-web-math | |
Search Memberlist Usergroups
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Author Message
Alex. Lupas
science forum Guru Wannabe
Joined: 06 May 2005
Posts: 245
Posted: Sat Jul 23, 2005 1:17 pm Post subject: Re: f=Ax^2+Bx+C , |f(x)| = < 1 ?
Quote: (1.1) K[G]=[4*G((a+b)*0.5)-(G(a)+G(b))-2*sqrt(G(a)G(b))]/(b-a)^2 . Then K>= 0 and on ... | HuggingFaceTB/finemath | |
This book is in Open Review. I want your feedback to make the book better for you and other readers. To add your annotation, select some text and then click the on the pop-up menu. To see the annotations of others, click the button in the upper right hand corner of the page
## 14.1 Example of application
Consider, fo... | HuggingFaceTB/finemath | |
# What is the probability that, if you roll a balanced die twice, that you will get a "1" on both dice?
Since only 1 combination out of 36 is 1-1 the probability is $\frac{1}{36}$
Only one combination (1-1) is considered 'favourable', so $\frac{1}{36}$ | HuggingFaceTB/finemath | |
# Show that an hyperplane is closed iff f is linear and continuous
I need an help with the following exercise.
Let $(E,\| \cdot \|)$ a n.v.s. and let $f:E\rightarrow \Bbb R$. Show that $H=\{x\in E: f(x)=\alpha\}$ is closed if and only if $f\in E'.$ Actually, I don't know if these hypothesis are enough to conclude, bu... | HuggingFaceTB/finemath | |
# Function Unit Vocabulary Quiz: Question Preview (ID: 16679)
### Below is a preview of the questions contained within the game titled FUNCTION UNIT VOCABULARY QUIZ: Vocabulary Quiz Over Words From 8th Grade Math Units 4 And 5. To play games using this data set, follow the directions below. Good luck and have fun. Enj... | HuggingFaceTB/finemath | |
Open access peer-reviewed chapter
# An Analysis of Drivers of International Investment Decisions in South Africa
By Itumeleng Pleasure Mongale and Livhuwani Baloyi
Submitted: April 25th 2019Reviewed: July 15th 2019Published: August 19th 2019
DOI: 10.5772/intechopen.88592
## Abstract
The study investigated the dri... | open-web-math/open-web-math | |
[phpBB Debug] PHP Notice: in file /includes/check_new_recommended_questions.php on line 37: Undefined array key "last_recommended_questions_epoch"
[phpBB Debug] PHP Notice: in file /includes/check_new_recommended_questions.php on line 41: Undefined array key "last_recommended_questions_epoch"
If x is a positive integer... | HuggingFaceTB/finemath | |
# JEE Main Solved Mathematics Sample Paper Set-XII
Find JEE Main 2017 Solved Mathematics Sample Paper Set-XII in pdf format. This sample paper will be very useful for the IIT JEE Main examination to be held on 2 April, 8 April, 9 April 2017. This paper consists of 30 questions from Mathematics. Each question of this p... | HuggingFaceTB/finemath | |
Displacement in Simple Harmonic Motion
• Difficulty Level : Expert
• Last Updated : 17 Aug, 2021
The Oscillatory Motion has a big part to play in the world of Physics. Oscillatory motions are said to be harmonic if the displacement of the oscillatory body can be expressed as a function of sine or cosine of an angle d... | HuggingFaceTB/finemath | |
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# If S=1+22x+32x2+42x3+......∞ where x=15. Find the value of 32 S.
Open in App
Solution
## This series is not AP, GP, HP and AGP How can we proceed? But we see 12,22,32,42..........∞ are square numbers and 1,x,x2,x3,x4,........∞ is a geome... | HuggingFaceTB/finemath | |
Examples for 7th grade (seventh) - page 72
1. Coil as a girl The electrical resistance of the copper wire coil is 2.0 ohms. What current runs through the coil when the voltage between the terminals is 3.0 V?
2. Gasoline tank 2 A gasoline tank is 1/6 full. When 25 liters of gasoline were added, it became 3/4 full. How ... | HuggingFaceTB/finemath | |
# How you solve (square root(1+4cosx))sinx=2sin45?
embizze | Certified Educator
Solve `sinxsqrt(1+4cosx)=2sin45^@` :
The right hand side is `sqrt(2)` since `sin45^@=sqrt(2)/2`
`sinxsqrt(1+4cosx)=sqrt(2)` Square both sides (we might introduce extraneous solutions so we must check all possible solutions in the origin... | HuggingFaceTB/finemath | |
Page 1 of 2
### Drawing a perspective grid (Solved)
Posted: Sat Mar 07, 2009 8:16 pm
Solution found Code: Select all
``````GRID_BOTTOM_WIDTH = 768
GRID_TOP_WIDTH = 384
GRID_BOTTOM_XI = 16
GRID_BOTTOM_YI = 472
GRID_BOTTOM_XF = GRID_BOTTOM_XI + GRID_BOTTOM_WIDTH
GRID_BOTTOM_YF = GRID_BOTTOM_YI
GRID_TOP_XI = ((GRID_... | HuggingFaceTB/finemath | |
# Problem of the Week
Welcome to the Centenary Math Problem of the Week contest! You can always find the most recent problem of the week below. You can also look at the current scores or read the rules. If you want to stay current with the POTW, you can become a fan of the Centenary Facebook page (at http://www.facebo... | HuggingFaceTB/finemath | |
# Search by Topic
#### Resources tagged with Graphs similar to Lying and Cheating:
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Circles. Rectangles. Gradients. smartphone. Visualising. Pythagoras' theorem. Graphs. Tangent. Area. Right angled triangles.
### Ther... | HuggingFaceTB/finemath | |
Q
Show that 9^n + 1 - 8n - 9 is divisible by 64, whenever n is a positive integer.
Q13. Show that $9^{n+1} - 8n - 9$is divisible by 64, whenever n is a positive integer.
Views
N
If we want to prove that $9^{n+1} - 8n - 9$is divisible by 64, then we have to prove that $9^{n+1} - 8n - 9=64k$
As we know, from bi... | HuggingFaceTB/finemath | |
First recall the definition of spanning.
Let V be a vector space over a field k. Vectors v1,...,vn are a spanning set, for V if for every vector v in V there exist scalars ai in k (which depend on v) such that v can be written in the form
v=a1v1 + a2v2 +...+ anvn.
A vector space with a finite spanning set is called ... | HuggingFaceTB/finemath | |
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How many different symmetrical shapes can you make by shading triangles or squares?
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Check GMAT Club Decision Tracker for the Latest School Decision Releases https://gmatclub.com/AppTrack
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### GMAT Club Daily Prep
#### Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Dail... | HuggingFaceTB/finemath | |
# Solution to Exercise 2.4.1
1. How many electrons per cm2 do you need on the surface a capacitor made of parallel metal plates in air with an area of 1 cm2 and distance 1 cm to provide for some field E ending there?
The relation between the field E resulting from a homogeneous two-dimensional charge distribution and ... | HuggingFaceTB/finemath | |
If for each $\alpha, \beta$, the map $\psi_{\beta} \circ F \circ \phi_{\alpha}^{-1}$ is smooth, then $F$ is smooth.
Let $F:M\to N$ be a map. Suppose $\mathcal{A} = \{(U_{\alpha},\phi_{\alpha})\}$ and $\mathcal{B} = \{(V_{\beta},\psi_{\beta})\}$ are smooth atlas for $M$ and $N$ respectively. Suppose that for each $\alp... | HuggingFaceTB/finemath | |
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A275447 Sum of the asymmetry degrees of all compositions of n with parts in {2,1,3,5,7,9,...}. 2
0, 0, 0, 2, 4, 10, 24, 54, 120, 258, 552, 1164, 2432, 5042, 10384, 21268, 43344, 87962, 1... | HuggingFaceTB/finemath | |
## ◂Math Worksheets and Study Guides Eighth Grade. Linear equations
### The resources above correspond to the standards listed below:
#### Maryland College and Career-Ready Standards
MD.MA.8.EE. Expressions and Equations (EE)
Understand the connections between proportional relationships, lines, and linear equations.... | HuggingFaceTB/finemath | |
### Slides from the lecture
```Bernoulli’s law
and
Magnus force
Blaise Pascal
P = ρgh
ρ=fluid/gas density
g=acceleration due to gravity
h=height
P = ρgh
• Pressure in liquid/gas is isotropic. It acts equally in all directions
• Pressure is force per unit area
• Due to the gravity, pressure at a given level equals to t... | HuggingFaceTB/finemath | |
### RDFZzzx's blog
By RDFZzzx, history, 20 months ago,
The computer game is based on this task on UVa OJ.
Recently, I wrote some code to develop it. (Both Engish and Chinese version)
Game page display：
• Engish Version:
• Chinese Version:
You are welcome to try it.
• 0
By RDFZzzx, history, 2 years ago,
# What... | HuggingFaceTB/finemath | |
What is the natural log of -0.9?
Mar 17, 2018
$\ln \left(- 0.9\right) = \ln \left(0.9\right) + i \pi \approx - 0.10536 + i \pi$
Explanation:
Note that the natural logarithm is supposed to be the inverse of the exponential function ${e}^{x}$. So the answer to our question is a solution of:
${e}^{x} = - 0.9$
Note h... | HuggingFaceTB/finemath | |
# Grams Of Salt In A Teaspoon
## Grams Of Salt In A Teaspoon
### How much are 25 grams of salt in teaspoons?
Volume of 25 grams of salt25 grams of salt =
1.39 Soup spoon
4.17 Teaspoon
0.09 WE. cups
0.07 imperial trophies
People also ask how many grams of salt are in a teaspoon.A teaspoon of table salt converted into... | HuggingFaceTB/finemath | |
## 1,073,741,823 Grains of Rice
In the children’s book “One Grain of Rice: A Mathematical Folktale” a girl uses her knowledge of exponential growth to trick a greedy king into turning over his stockpile of rice. Hidden in the story are mathematical concepts related to doubling: powers of two, geometric sequences, geom... | HuggingFaceTB/finemath | |
# A Virtual Tribute to Quark Confinement and the Hadron Spectrum 2021
Aug 2 – 6, 2021
online
Europe/Brussels timezone
## Dispersive study of $K\pi$ scattering and determination of threshold parameters and of $\kappa/K_0^*(700)$ resonance properties
Aug 5, 2021, 10:50 AM
20m
online
#### online
Parallel contribution... | open-web-math/open-web-math | |
# Find the two largest maximums of an interpolating function of a specific shape (fast)
I have an oscillating interpolating function f[x] and I would like to find the x values of the two largest maximums (or even better: their distance).
One example of such an interpolating function is generated by this code:
v0 = 2... | HuggingFaceTB/finemath | |
{[ promptMessage ]}
Bookmark it
{[ promptMessage ]}
MATH 330 Q4142sol
# MATH 330 Q4142sol - Math 330 Chapter 4 Quizzes Q41...
This preview shows pages 1–2. Sign up to view the full content.
Math 330 - Chapter 4 Quizzes Q41 Take-home due March 13,2009 All but one of the following is not a vector space. Explain why... | HuggingFaceTB/finemath | |
# Questions on Solving Linear Equations
Multiple choice questions, with answers, on solving linear equations are presented. You may want to work through Solving Linear Equations - Tutorial before you start answering the questions below.
Select the correct answer in the multiple questions below.
## Question 1
Solve ... | HuggingFaceTB/finemath | |
Which ones are you using?
1 / 13
# Which ones are you using? - PowerPoint PPT Presentation
Team Worker. Positive Thinker. Creative Entrepreneur. Independent Learner. Reflective Learner. Responsible Citizen. Real life cross/curricular links?. Where are we in our journey?. Which ones are you using?. Enterprise Skills.... | HuggingFaceTB/finemath | |
# 38 CM TO INCHES
## 2 min
The cm is less than an inch and it is used to measure the length. Centimeters and inches are used to obtain the length of the object. 1″ is equal to 2.54 centimeters. The cm stands for centimeter and in stands for inches.
## How to convert 38 cm to inches?
38 centimeter is equal to 14... | HuggingFaceTB/finemath | |
# Angular frequency
Updated on
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Comment
In physics, angular frequency ω (also referred to by the terms angular speed, radial frequency, circular frequency, orbital frequency, radian frequency, and pulsatance) is a scalar measure of rotation rate. It refers to the angular displacement per unit time (e.g., in ... | HuggingFaceTB/finemath | |
# Finding the true anomaly
I've read from a page that you can find the distance from the Sun to the Earth via the following equation:
$$r = a\frac{1-e^2}{1+e\cdot \cos(θ)}$$
where r is the distance from the Sun, a is the semi-major axis, e is the eccentricity and θ is the angle around from perihelion.
I am trying t... | HuggingFaceTB/finemath | |
# The Weibull distribution
Mathematically, the Weibull distribution has a simple definition. It is mathematically tractable. It is also a versatile model. The Weibull distribution is widely used in life data analysis, particularly in reliability engineering. In addition to analysis of fatigue data, the Weibull distrib... | HuggingFaceTB/finemath | |
## Calculating How Much Defense is left in a Target
11 Replies
Moderator
28 September, 2015, 12:47 PM UTC
continuing with some post about calculating battles here i give you one about how wto know how much defense still remains in a target after missing the first hit
First of all, you need to know - as precisely as ... | HuggingFaceTB/finemath | |
# Permutations.
• Jan 25th 2009, 09:14 PM
Big-K
Permutations.
10C2
i know the answer is 45.
but for some reason, i can't get THAT answer. i keep getting something else....
• Jan 25th 2009, 09:19 PM
andreas
Quote:
Originally Posted by Big-K
10C2
i know the answer is 45.
but for some reason, i can't get THAT answer. i... | HuggingFaceTB/finemath | |
Courses
# Test: Integrals Of Trigonometric Identities
## 5 Questions MCQ Test Mathematics For JEE | Test: Integrals Of Trigonometric Identities
Description
This mock test of Test: Integrals Of Trigonometric Identities for JEE helps you for every JEE entrance exam. This contains 5 Multiple Choice Questions for JEE Te... | HuggingFaceTB/finemath | |
# Questions using syllogisms, and how to solve them, plus more!
## Strategies for answering syllogism questions
The primary purpose of syllogism questions is to apply logic to a condensed argument. Developed by the ancient Greeks, this particular way of thinking is often credited to Aristotle as its final arbiter.
T... | HuggingFaceTB/finemath | |
Solutions by everydaycalculation.com
## Multiply 50/4 with 98/54
1st number: 12 2/4, 2nd number: 1 44/54
This multiplication involving fractions can also be rephrased as "What is 50/4 of 1 44/54?"
50/4 × 98/54 is 1225/54.
#### Steps for multiplying fractions
1. Simply multiply the numerators and denominators sepa... | HuggingFaceTB/finemath | |
# Distance from a point to a polygon
I am trying to determine the distance from a point to a polygon in 2D space. The point can be inside or outside the polygon; The polygon can be convex or concave.
If the point is within the polygon or outside the polygon with a distance smaller than a user-defined constant `d`, th... | HuggingFaceTB/finemath | |
# Math
posted by on .
The half-life of carbon-14, which is used in dating archaeological finds, is 5730 yr. Assume that 100% of the carbon-14 is present at time 0 yr, or x=0. Write the equation that expresses the percentage of carbon-14 remaining as a function of time.
• Math - ,
Amount left = (1/2)^(x/5730)
check... | HuggingFaceTB/finemath | |
# How many squares are on a chess board?
DrSpudnik wrote:
...and the two squares playing the game.
I like that joke lol. Its "cute"
bartnic1 wrote:
knightscape077 wrote:
Now how many cubes are there in a 3D chess board?
Seems like its an easy generalization.
8x8x8 + 7x7x7 + 6x6x6 + ... + 1x1x1
Though it's maybe... | HuggingFaceTB/finemath | |
GCD (Greatest Common Divisor) of two non-zero integers, is the largest positive integer that divides both numbers without remainder. For example, the GCD of the number 10 and 25 is 5 (10 = 5*2 and 25 = 5*5).
LCM (Least Common Multiple) of two integers a and b is the smallest positive integer that is a multiple of both... | HuggingFaceTB/finemath | |
# Scenario
Let’s start from a very generic scenario: We have some measurements $$(x_i,y_i)$$, $$i\in I=\{1,...,n\}$$, and a model $$f_\theta$$ for these measurements, where $$\theta$$ is a parameter. However, these measurements are noisy, i.e., there are some measurement errors. In formulas: $$f_\theta(x_i)=y_i+\epsil... | HuggingFaceTB/finemath | |
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ਮੁੱਖ ਸਮੱਗਰੀ
## ਜਮਾਤ 8 (ਬੁਨਿਆਦ)
### ਕੋਰਸ: ਜਮਾਤ 8 (ਬੁਨਿਆਦ)>Unit 8
Lesson 1: ਸਮੀਕਰਨ ਹੱਲ ਕਰਨਾ
# ਇੱ... | HuggingFaceTB/finemath | |
# Math
4 divided by 1/2 ??????
1/4 divided by 1/3 ?????
3 3/4 divided by 1/3 ????
Thank you to everyone who has been helping me!!
1. 👍 0
2. 👎 0
3. 👁 132
1. 4 /(1/2)
multiply top and bottom by 2
8 /(2/2)
or
8
================
(1/4) /(1/3) multiply top and bottom by 3
(3/4) / (3/3)
or
3/4
======================... | HuggingFaceTB/finemath | |
# Document 13447028 ```Optimization Methods in Management Science
MIT 15.053, Spring 2013
Problem Set 5, Due: Thursday April 2th, 2013
Problem Set Rules:
1. Each student should hand in an individual problem set.
2. Discussing problem sets with other students is permitted. Copying from another person
or solution set is ... | HuggingFaceTB/finemath | |
# Hcf And Lcm Of Numbers MCQ
## 17 Questions MCQ Test Additional Documents & Tests for CLAT | Hcf And Lcm Of Numbers MCQ
Description
Attempt Hcf And Lcm Of Numbers MCQ | 17 questions in 15 minutes | Mock test for CLAT preparation | Free important questions MCQ to study Additional Documents & Tests for CLAT for CLAT E... | HuggingFaceTB/finemath | |
NEW
New Website Launch
Experience the best way to solve previous year questions with mock tests (very detailed analysis), bookmark your favourite questions, practice etc...
1
### AIEEE 2005
If the roots of the equation $${x^2} - bx + c = 0$$ be two consecutive integers, then $${b^2} - 4c$$ equals
A
$$-2$$
B
$$3$$
C
$... | open-web-math/open-web-math | |
# Calculate the number of molecules of carbon dioxide are not equal in number of moles
#1
(i) Show that 100 g of water and 100 g of carbon dioxide are not equal in number of moles. Molecular masses of water and carbon dioxide are 18 u and 44 u respectively.
(iii) Calculate the number of molecules present in 100 g of ... | HuggingFaceTB/finemath | |
# Analyze the equation; that is, find the center, foci, and vertices of the given ellipse. Graph the equation.
Analyze the equation; that is, find the center, foci, and vertices of the given ellipse. Graph the equation.
asked Feb 2, 2015
Step 1:
The equation is .
Compare it to standard form of the ellipse equatio... | HuggingFaceTB/finemath | |
## The Tyrrells School
Aspire, Care, Learn for Life
# Friday
Spellings
Here are your spellings to practise for next week. How did you get on in your test?
English
Handwriting
Have a look at the three letter formation videos and then complete the handwriting sheet or have a go on your own in your exercise book. D... | HuggingFaceTB/finemath | |
## tryder 3 years ago Marcus plans to buy a Compact Disc (CD) that has a regular price of \$13.99. It is on sale for 10% off, but Marcus will have to pay 7% sales tax. Which is the MOST reasonable estimate of the total cost of the CD including tax
1. thalie25
\$13.57
2. RaiStaine
10% of 13.99 =1.39 13.99-1.39 =12.6... | HuggingFaceTB/finemath | |
# Documentation
Mathlib.SetTheory.Cardinal.SchroederBernstein
# Schröder-Bernstein theorem, well-ordering of cardinals #
This file proves the Schröder-Bernstein theorem (see schroeder_bernstein), the well-ordering of cardinals (see min_injective) and the totality of their order (see total).
## Notes #
Cardinals ar... | HuggingFaceTB/finemath | |
How Do You Find The Transfer Function Of A System?
What are the limitations of transfer function?
The main limitation of transfer functions is that they can only be used for linear systems.
While many of the concepts for state space modeling and analysis extend to nonlinear systems, there is no such analog for trans... | HuggingFaceTB/finemath | |
Thursday, June 5, 2008
Ch. 14 Family of Lines - 1
The joint equation of the straight lines a1x +b1y +c1 = 0 and a2x +b2y+ c2 = 0 is
(a1x +b1y +c1) (a2x +b2y+ c2) = 0
ax² +2hxy+by²+2gx+2fy+c = 0 is joint equation of a pair of straight lines.
The equation ax² +2hxy+by²+2gx+2fy+c = 0 is known as general equation of se... | HuggingFaceTB/finemath | |
# How do you solve the quadratic equation by completing the square: x^2+2x-5=0?
Aug 1, 2015
${x}_{1 , 2} = - 1 \pm \sqrt{6}$
#### Explanation:
$\textcolor{b l u e}{{x}^{2} + \frac{b}{a} x = - \frac{c}{a}}$
To do that, add $5$ to both sides of the equation
${x}^{2} + 2 x - \textcolor{red}{\cancel{\textcolor{b l a ... | HuggingFaceTB/finemath | |
Speed at a certain distance from the sun
• najatau
In summary: The velocity of the comet should be negative, but it's actually positive. This is a mistake in the homework. :(Hello! These problems of mine are due in the morning. I'm not sure whether or not I will be able to figure them out in time, but I do need to und... | HuggingFaceTB/finemath | |
# Discrete Mathematics Week 5 NPTEL
### These are the solution of Discrete Mathematics Week 5 NPTEL Assignment 5 Answers
Course name: Discrete Mathematics
Check and submit Discrete Mathematics Week 4 NPTEL assignment here
Q1) Which of the following is(are) true for the given function?
f:R→Rf(x)=x2+2𝑓:𝑅→𝑅𝑓(𝑥)=�... | HuggingFaceTB/finemath | |
Home/Class 9/Maths/
State whether the following statement is true or false? Give reasons for your answer.
Every rational number is an integer.___
Speed
00:00
01:52
## QuestionMathsClass 9
State whether the following statement is true or false? Give reasons for your answer.
Every rational number is an integer.___
×
... | HuggingFaceTB/finemath | |
# Prove the order of finite simple group is not perfect and even number.
Prove the order of finite simple group is not perfect and even number.
From elementary number theory, all even perfect numbers are of the form $$2^{p-1}\left(2^{p}-1\right)$$ where $$p$$ is a prime number and $$2^{p}-1$$ is also a prime- number.... | HuggingFaceTB/finemath | |
Examples
Chapter 10 Class 9 Circles
Serial order wise This video is only available for Teachoo black users
Get live Maths 1-on-1 Classs - Class 6 to 12
### Transcript
Example 6 Prove that the quadrilateral formed (if possible) by the internal angle bisectors of any quadrilateral is cyclic. Given: ABCD is a quadr... | HuggingFaceTB/finemath |
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