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| [ | |
| { | |
| "timestamp": "2025-10-28T23:44:33.438347", | |
| "query": "What is the integral of sin(x)?", | |
| "answer": "WEB", | |
| "feedback": "Incorrect \u2014 the correct answer is -cos(x) + C" | |
| }, | |
| { | |
| "timestamp": "2025-10-28T23:47:37.610680", | |
| "query": "What is the integral of sin(x)?", | |
| "answer": "WEB", | |
| "feedback": "Incorrect \u2014 the correct answer is -cos(x) + C" | |
| }, | |
| { | |
| "timestamp": "2025-10-28T23:50:34.812828", | |
| "query": "What is the integral of sin(x)?", | |
| "answer": "WEB", | |
| "feedback": "Incorrect \u2014 the correct answer is -cos(x) + C" | |
| }, | |
| { | |
| "timestamp": "2025-10-28T23:52:07.815951", | |
| "query": "What is the integral of sin(x)?", | |
| "answer": "WEB", | |
| "feedback": "Incorrect \u2014 the correct answer is -cos(x) + C" | |
| }, | |
| { | |
| "timestamp": "2025-10-28T23:55:11.166467", | |
| "query": "What is the integral of sin(x)?", | |
| "answer": "WEB", | |
| "feedback": "Incorrect \u2014 the correct answer is -cos(x) + C" | |
| }, | |
| { | |
| "timestamp": "2025-10-28T23:58:22.966961", | |
| "query": "What is the integral of sin(x)?", | |
| "answer": "WEB", | |
| "feedback": "Incorrect \u2014 the correct answer is -cos(x) + C" | |
| }, | |
| { | |
| "timestamp": "2025-10-28T23:59:57.870620", | |
| "query": "What is the integral of sin(x)?", | |
| "answer": "WEB", | |
| "feedback": "Incorrect \u2014 the correct answer is -cos(x) + C" | |
| }, | |
| { | |
| "timestamp": "2025-10-29T00:01:47.611761", | |
| "query": "What is the integral of sin(x)?", | |
| "answer": "WEB", | |
| "feedback": "Incorrect \u2014 the correct answer is -cos(x) + C" | |
| }, | |
| { | |
| "timestamp": "2025-10-29T00:03:41.277987", | |
| "query": "What is the integral of sin(x)?", | |
| "answer": "WEB", | |
| "feedback": "Incorrect \u2014 the correct answer is -cos(x) + C" | |
| }, | |
| { | |
| "timestamp": "2025-10-29T00:13:19.920208", | |
| "query": "What is the integral of sin(x)?", | |
| "answer": "WEB", | |
| "feedback": "Incorrect \u2014 the correct answer is -cos(x) + C" | |
| }, | |
| { | |
| "timestamp": "2025-10-29T00:15:51.787155", | |
| "query": "What is the integral of sin(x)?", | |
| "answer": "WEB", | |
| "feedback": "Incorrect \u2014 the correct answer is -cos(x) + C" | |
| }, | |
| { | |
| "timestamp": "2025-10-29T00:17:35.253793", | |
| "query": "What is the integral of sin(x)?", | |
| "answer": "WEB", | |
| "feedback": "Incorrect \u2014 the correct answer is -cos(x) + C" | |
| }, | |
| { | |
| "timestamp": "2025-10-29T00:20:26.191961", | |
| "query": "What is the integral of sin(x)?", | |
| "answer": "WEB", | |
| "feedback": "Incorrect \u2014 the correct answer is -cos(x) + C" | |
| }, | |
| { | |
| "timestamp": "2025-10-29T00:21:49.889546", | |
| "query": "What is the integral of sin(x)?", | |
| "answer": "WEB", | |
| "feedback": "Incorrect \u2014 the correct answer is -cos(x) + C" | |
| }, | |
| { | |
| "timestamp": "2025-10-29T00:29:02.417399", | |
| "query": "What is the integral of sin(x)?", | |
| "answer": "WEB", | |
| "feedback": "Incorrect \u2014 the correct answer is -cos(x) + C" | |
| }, | |
| { | |
| "timestamp": "2025-10-29T00:30:43.568817", | |
| "query": "What is the integral of sin(x)?", | |
| "answer": "WEB", | |
| "feedback": "Incorrect \u2014 the correct answer is -cos(x) + C" | |
| }, | |
| { | |
| "timestamp": "2025-10-29T10:11:22.019712", | |
| "query": "What is the integral of sin(x)?", | |
| "answer": "WEB", | |
| "feedback": "Incorrect \u2014 the correct answer is -cos(x) + C" | |
| }, | |
| { | |
| "timestamp": "2025-10-29T11:35:41.805717", | |
| "query": "integration of sin(x)", | |
| "answer": "The integral of sin(x) sin ( x ) with respect to x x is \u2212cos(x) - cos ( x ) . \u2212cos(x)+C - cos ( x ) + C. sin(x) s i n \u2061 ( x ) Mathematically, this is written as **\u222b sin x dx = -cos x + C**, were, C is the integration constant. * \u222b sin x dx = -cos x + C, where C is the constant of integration. \u222b sin x dx = -cos x + C -cos x + C = \u222b sin x dx **Answer:** \u222b sin x cos x dx = (-cos 2x)/4 + C \u222b sin u (1/2) du = (1/2) (-cos u) + C (as the integration of sin x is -cos x) **Answer:** \u222b x sin (x2) dx = (-cos x2)/2+C The integral of sin x is -cos x + C. Substituting u = 3x back, we get \u222b sin 3x dx = (1/3) (-cos (3x)) + C. Integral of sin(x)\nblackpenredpen\n1380000 subscribers\n1082 likes\n200320 views\n22 Feb 2015\nThe integral of sin(x) is just -cos(x)+C because the derivative of -cos(x) is sin(x).\n\nCheck out my 100 integrals for more calculus integral practice problems. https://youtu.be/dgm4-3-Iv3s?si=lTybJlpTMFdQINXr\n----------------------------------------\n\ud83d\udecd Shop my math t-shirt & hoodies: amzn.to/3qBeuw6\n\ud83d\udcaa Get my math notes by becoming a patron: https://www.patreon.com/blackpenredpen\n#blackpenredpen #math #calculus #apcalculus\n57 comments\n Our rough (rough!) conversion to Plain English is: The integral of sin(x) multiplies our intended path length (from 0 to x) by a percentage. # Integral of Sin x * What is Integral of Sin x? * Integral of Sin x From 0 to \u03c0 * Integral of Sin x From 0 to \u03c0/2 ## ****What is Integral of Sin x?**** The integral of the sine function, \u222b sin(x) dx, is equal to -cos(x) + C, where C is the constant of integration. Integral of sin(x) dx = -\u222b du Integral of sin(x) dx = -u + C Integral of sin(x) dx = -cos(x) + C ## ****Integral of Sin x From 0 to**** \u03c0 ## ****Integral of Sin x From 0 to**** \u03c0****/2**** ****Example 7: Find integral of x sin 2x dx**** ****Example 8: Find integral of sin x cos 2x****", | |
| "feedback": "please give in 50 words" | |
| }, | |
| { | |
| "timestamp": "2025-10-29T19:15:40.383977", | |
| "query": "What is the integral of sin(x)?", | |
| "answer": "WEB", | |
| "feedback": "Incorrect \u2014 the correct answer is -cos(x) + C" | |
| }, | |
| { | |
| "query": "derivative of sin(x)", | |
| "answer": "The derivative of the sine function, sin\u2061(x), is the cosine function, cos\u2061(x). Mathematically, if f(x)=sin(x), then f\u2032(x)=cos\u2061(x). This result Here also we are going to prove the derivative of sin x to be -cos x using the first principle. The derivative of sin x is cos x. Thus, we have proved that the derivative of sin x is cos x. Therefore, the derivative of sin is cos x and is proved by using the quotient rule. Derivative of Sin x Worksheet Therefore, the derivative of sin x is cos x. * The derivative of sin x is cos x. Thus, the derivative of sin 3x is 3 cos 3x. Therefore, the derivative of sin x by first principle is cos x. We know that the derivative of sin x is cos x. So the derivative of sin x2 using this and using the chain rule is cos x2\u00b7 d/dx(x2). ## Derivative of sin x using the First Principle Method f\u2019(x) = limh\u21920 [sin x cos h + cos x sin h \u2013 sin x]/h f\u2019(x) = limh\u21920 [-sin x(1-cosh) + cos x sin h]/h sin (0/2)) + cos x (1) f\u2019(x) = \u2013 sin x(0) + cos x Thus, the derivative of sin x is cos x, is derived. ### Derivative of Sin x Examples Now, we have to find the derivative of sin (x+1), using the 1st principle. Hence, the derivative of sin (x+1), with respect to x is cos (x+1). Find the derivative of sin 2x. **To find:** derivative of sin 2x. Hence, the derivative of sin 2x is 2 cos 2x. ddx[sinx]=cosx Certainly, by the limit definition of the derivative, we know that ddx[sinx]=limh\u21920sin(x+h)\u2212sin(x)h ddx[sinx]=limh\u21920sinxcosh+cosxsinh\u2212sinxh Seeing all of the components of a similar limit in our expression for the derivative, (i.e., there is a sinh in the numerator, an h in the denominator, and both of these are inside a limit as h\u21920), we use algebra and the limit laws to reveal this known limit in our expression: ddx[sinx]=limh\u21920[cosxsinhh+sinxcosh\u2212sinxh]=limh\u21920[cosx\u22c5sinhh+sinxcosh\u2212sinxh]=limh\u21920cosx\u22c5limh\u21920sinhh+limh\u21920sinxcosh\u2212sinxh Note, the first limit in the last line above is of an expression that does not depend on h, and hence effectively the limit of a constant. ddx[sinx]=cosx+limh\u21920sinxcosh\u2212sinxh Pulling out the common factor of sinx in the remaining limit and splitting the resulting product with the limit laws again, we see another familiar limit -- one we which we know equals zero... ddx[sinx]=cosx+limh\u21920sinx(cosh\u22121)h=cosx+[limh\u21920sinx]\u22c5[limh\u21920cosh\u22121h]=cosx+sinx\u22c50=cosx d/dx(sin x) = \u03c0/180 cos x \"\"\" Which seems to suggest that the d/dx sin(x) is not equal to the cos(x) when degrees are used. That a constant must", | |
| "feedback": "its cos(x)+c" | |
| }, | |
| { | |
| "query": "derivative of sin(x)", | |
| "answer": "The derivative of the sine function, sin\u2061(x), is the cosine function, cos\u2061(x). Mathematically, if f(x)=sin(x), then f\u2032(x)=cos\u2061(x). This result Here also we are going to prove the derivative of sin x to be -cos x using the first principle. The derivative of sin x is cos x. Thus, we have proved that the derivative of sin x is cos x. Therefore, the derivative of sin is cos x and is proved by using the quotient rule. Derivative of Sin x Worksheet Therefore, the derivative of sin x is cos x. * The derivative of sin x is cos x. Thus, the derivative of sin 3x is 3 cos 3x. Therefore, the derivative of sin x by first principle is cos x. We know that the derivative of sin x is cos x. So the derivative of sin x2 using this and using the chain rule is cos x2\u00b7 d/dx(x2). ## Derivative of sin x using the First Principle Method f\u2019(x) = limh\u21920 [sin x cos h + cos x sin h \u2013 sin x]/h f\u2019(x) = limh\u21920 [-sin x(1-cosh) + cos x sin h]/h sin (0/2)) + cos x (1) f\u2019(x) = \u2013 sin x(0) + cos x Thus, the derivative of sin x is cos x, is derived. ### Derivative of Sin x Examples Now, we have to find the derivative of sin (x+1), using the 1st principle. Hence, the derivative of sin (x+1), with respect to x is cos (x+1). Find the derivative of sin 2x. **To find:** derivative of sin 2x. Hence, the derivative of sin 2x is 2 cos 2x. ddx[sinx]=cosx Certainly, by the limit definition of the derivative, we know that ddx[sinx]=limh\u21920sin(x+h)\u2212sin(x)h ddx[sinx]=limh\u21920sinxcosh+cosxsinh\u2212sinxh Seeing all of the components of a similar limit in our expression for the derivative, (i.e., there is a sinh in the numerator, an h in the denominator, and both of these are inside a limit as h\u21920), we use algebra and the limit laws to reveal this known limit in our expression: ddx[sinx]=limh\u21920[cosxsinhh+sinxcosh\u2212sinxh]=limh\u21920[cosx\u22c5sinhh+sinxcosh\u2212sinxh]=limh\u21920cosx\u22c5limh\u21920sinhh+limh\u21920sinxcosh\u2212sinxh Note, the first limit in the last line above is of an expression that does not depend on h, and hence effectively the limit of a constant. ddx[sinx]=cosx+limh\u21920sinxcosh\u2212sinxh Pulling out the common factor of sinx in the remaining limit and splitting the resulting product with the limit laws again, we see another familiar limit -- one we which we know equals zero... ddx[sinx]=cosx+limh\u21920sinx(cosh\u22121)h=cosx+[limh\u21920sinx]\u22c5[limh\u21920cosh\u22121h]=cosx+sinx\u22c50=cosx d/dx(sin x) = \u03c0/180 cos x \"\"\" Which seems to suggest that the d/dx sin(x) is not equal to the cos(x) when degrees are used. That a constant must", | |
| "feedback": "its cos(x)+c", | |
| "rating": null | |
| }, | |
| { | |
| "query": "derivative of sinx", | |
| "answer": "The derivative of sin x is cos x, which is the rate of change of the sine function at any given point. Here also we are going to prove the derivative of sin x to be -cos x using the first principle. The derivative of sin x is cos x. Thus, we have proved that the derivative of sin x is cos x. Therefore, the derivative of sin is cos x and is proved by using the quotient rule. Derivative of Sin x Worksheet Therefore, the derivative of sin x is cos x. * The derivative of sin x is cos x. Thus, the derivative of sin 3x is 3 cos 3x. Therefore, the derivative of sin x by first principle is cos x. We know that the derivative of sin x is cos x. So the derivative of sin x2 using this and using the chain rule is cos x2\u00b7 d/dx(x2). ## Derivative of sin x using the First Principle Method f\u2019(x) = limh\u21920 [sin x cos h + cos x sin h \u2013 sin x]/h f\u2019(x) = limh\u21920 [-sin x(1-cosh) + cos x sin h]/h sin (0/2)) + cos x (1) f\u2019(x) = \u2013 sin x(0) + cos x Thus, the derivative of sin x is cos x, is derived. ### Derivative of Sin x Examples Now, we have to find the derivative of sin (x+1), using the 1st principle. Hence, the derivative of sin (x+1), with respect to x is cos (x+1). Find the derivative of sin 2x. **To find:** derivative of sin 2x. Hence, the derivative of sin 2x is 2 cos 2x. : r/calculus : r/calculus Image 1: r/calculus icon Go to calculus r/calculus Image 3: r/calculus iconr/calculus Welcome to r/calculus - a space for learning calculus and related disciplines. We learned in class that the derivative of sin(x) is cos(x). New to Reddit? * Reddit reReddit: Top posts of October 6, 2016 * * * * Reddit reReddit: Top posts of October 2016 * * * * Reddit reReddit: Top posts of 2016 * * * * Reddit Meta * Games * Gaming News & Discussion * Other Games * Action Movies & Series * Animated Movies & Series * Comedy Movies & Series * Romance Movies & Series * Superhero Movies & Series * About Reddit * Best of Reddit ddx[sinx]=cosx Certainly, by the limit definition of the derivative, we know that ddx[sinx]=limh\u21920sin(x+h)\u2212sin(x)h ddx[sinx]=limh\u21920sinxcosh+cosxsinh\u2212sinxh Seeing all of the components of a similar limit in our expression for the derivative, (i.e., there is a sinh in the numerator, an h in the denominator, and both of these are inside a limit as h\u21920), we use algebra and the limit laws to reveal this known limit in our expression: ddx[sinx]=limh\u21920[cosxsinhh+sinxcosh\u2212sinxh]=limh\u21920[cosx\u22c5sinhh+sinxcosh\u2212sinxh]=limh\u21920cosx\u22c5limh\u21920sinhh+limh\u21920sinxcosh\u2212sinxh Note, the first limit in the last line above is of an expression that does not depend on h, and hence effectively the limit of a constant. ddx[sinx]=cosx+limh\u21920sinxcosh\u2212sinxh Pulling out the common factor of sinx in the remaining limit and splitting the resulting product with the limit laws again, we see another familiar limit -- one we which we know equals zero... ddx[sinx]=cosx+limh\u21920sinx(cosh\u22121)h=cosx+[limh\u21920sinx]\u22c5[limh\u21920cosh\u22121h]=cosx+sinx\u22c50=cosx", | |
| "feedback": "good", | |
| "rating": null | |
| }, | |
| { | |
| "query": "derivative of sinx", | |
| "answer": "The derivative of sin x is cos x, which is the rate of change of the sine function at any given point. Here also we are going to prove the derivative of sin x to be -cos x using the first principle. The derivative of sin x is cos x. Thus, we have proved that the derivative of sin x is cos x. Therefore, the derivative of sin is cos x and is proved by using the quotient rule. Derivative of Sin x Worksheet Therefore, the derivative of sin x is cos x. * The derivative of sin x is cos x. Thus, the derivative of sin 3x is 3 cos 3x. Therefore, the derivative of sin x by first principle is cos x. We know that the derivative of sin x is cos x. So the derivative of sin x2 using this and using the chain rule is cos x2\u00b7 d/dx(x2). ## Derivative of sin x using the First Principle Method f\u2019(x) = limh\u21920 [sin x cos h + cos x sin h \u2013 sin x]/h f\u2019(x) = limh\u21920 [-sin x(1-cosh) + cos x sin h]/h sin (0/2)) + cos x (1) f\u2019(x) = \u2013 sin x(0) + cos x Thus, the derivative of sin x is cos x, is derived. ### Derivative of Sin x Examples Now, we have to find the derivative of sin (x+1), using the 1st principle. Hence, the derivative of sin (x+1), with respect to x is cos (x+1). Find the derivative of sin 2x. **To find:** derivative of sin 2x. Hence, the derivative of sin 2x is 2 cos 2x. : r/calculus : r/calculus Image 1: r/calculus icon Go to calculus r/calculus Image 3: r/calculus iconr/calculus Welcome to r/calculus - a space for learning calculus and related disciplines. We learned in class that the derivative of sin(x) is cos(x). New to Reddit? * Reddit reReddit: Top posts of October 6, 2016 * * * * Reddit reReddit: Top posts of October 2016 * * * * Reddit reReddit: Top posts of 2016 * * * * Reddit Meta * Games * Gaming News & Discussion * Other Games * Action Movies & Series * Animated Movies & Series * Comedy Movies & Series * Romance Movies & Series * Superhero Movies & Series * About Reddit * Best of Reddit ddx[sinx]=cosx Certainly, by the limit definition of the derivative, we know that ddx[sinx]=limh\u21920sin(x+h)\u2212sin(x)h ddx[sinx]=limh\u21920sinxcosh+cosxsinh\u2212sinxh Seeing all of the components of a similar limit in our expression for the derivative, (i.e., there is a sinh in the numerator, an h in the denominator, and both of these are inside a limit as h\u21920), we use algebra and the limit laws to reveal this known limit in our expression: ddx[sinx]=limh\u21920[cosxsinhh+sinxcosh\u2212sinxh]=limh\u21920[cosx\u22c5sinhh+sinxcosh\u2212sinxh]=limh\u21920cosx\u22c5limh\u21920sinhh+limh\u21920sinxcosh\u2212sinxh Note, the first limit in the last line above is of an expression that does not depend on h, and hence effectively the limit of a constant. ddx[sinx]=cosx+limh\u21920sinxcosh\u2212sinxh Pulling out the common factor of sinx in the remaining limit and splitting the resulting product with the limit laws again, we see another familiar limit -- one we which we know equals zero... ddx[sinx]=cosx+limh\u21920sinx(cosh\u22121)h=cosx+[limh\u21920sinx]\u22c5[limh\u21920cosh\u22121h]=cosx+sinx\u22c50=cosx", | |
| "feedback": "good", | |
| "rating": null | |
| }, | |
| { | |
| "query": "derivative of sinx", | |
| "answer": "The derivative of sin x is cos x, which is the rate of change of the sine function at any given point. Here also we are going to prove the derivative of sin x to be -cos x using the first principle. The derivative of sin x is cos x. Thus, we have proved that the derivative of sin x is cos x. Therefore, the derivative of sin is cos x and is proved by using the quotient rule. Derivative of Sin x Worksheet Therefore, the derivative of sin x is cos x. * The derivative of sin x is cos x. Thus, the derivative of sin 3x is 3 cos 3x. Therefore, the derivative of sin x by first principle is cos x. We know that the derivative of sin x is cos x. So the derivative of sin x2 using this and using the chain rule is cos x2\u00b7 d/dx(x2). ## Derivative of sin x using the First Principle Method f\u2019(x) = limh\u21920 [sin x cos h + cos x sin h \u2013 sin x]/h f\u2019(x) = limh\u21920 [-sin x(1-cosh) + cos x sin h]/h sin (0/2)) + cos x (1) f\u2019(x) = \u2013 sin x(0) + cos x Thus, the derivative of sin x is cos x, is derived. ### Derivative of Sin x Examples Now, we have to find the derivative of sin (x+1), using the 1st principle. Hence, the derivative of sin (x+1), with respect to x is cos (x+1). Find the derivative of sin 2x. **To find:** derivative of sin 2x. Hence, the derivative of sin 2x is 2 cos 2x. : r/calculus : r/calculus Image 1: r/calculus icon Go to calculus r/calculus Image 3: r/calculus iconr/calculus Welcome to r/calculus - a space for learning calculus and related disciplines. We learned in class that the derivative of sin(x) is cos(x). New to Reddit? * Reddit reReddit: Top posts of October 6, 2016 * * * * Reddit reReddit: Top posts of October 2016 * * * * Reddit reReddit: Top posts of 2016 * * * * Reddit Meta * Games * Gaming News & Discussion * Other Games * Action Movies & Series * Animated Movies & Series * Comedy Movies & Series * Romance Movies & Series * Superhero Movies & Series * About Reddit * Best of Reddit ddx[sinx]=cosx Certainly, by the limit definition of the derivative, we know that ddx[sinx]=limh\u21920sin(x+h)\u2212sin(x)h ddx[sinx]=limh\u21920sinxcosh+cosxsinh\u2212sinxh Seeing all of the components of a similar limit in our expression for the derivative, (i.e., there is a sinh in the numerator, an h in the denominator, and both of these are inside a limit as h\u21920), we use algebra and the limit laws to reveal this known limit in our expression: ddx[sinx]=limh\u21920[cosxsinhh+sinxcosh\u2212sinxh]=limh\u21920[cosx\u22c5sinhh+sinxcosh\u2212sinxh]=limh\u21920cosx\u22c5limh\u21920sinhh+limh\u21920sinxcosh\u2212sinxh Note, the first limit in the last line above is of an expression that does not depend on h, and hence effectively the limit of a constant. ddx[sinx]=cosx+limh\u21920sinxcosh\u2212sinxh Pulling out the common factor of sinx in the remaining limit and splitting the resulting product with the limit laws again, we see another familiar limit -- one we which we know equals zero... ddx[sinx]=cosx+limh\u21920sinx(cosh\u22121)h=cosx+[limh\u21920sinx]\u22c5[limh\u21920cosh\u22121h]=cosx+sinx\u22c50=cosx", | |
| "feedback": "its too long!", | |
| "rating": null | |
| }, | |
| { | |
| "query": "derivative of sinx", | |
| "answer": "The derivative of sin x is the rate of change with respect to angle ie, x. The resultant of the derivative of sin x is cos x. Here also we are going to prove the derivative of sin x to be -cos x using the first principle. The derivative of sin x is cos x. Thus, we have proved that the derivative of sin x is cos x. Therefore, the derivative of sin is cos x and is proved by using the quotient rule. Derivative of Sin x Worksheet Therefore, the derivative of sin x is cos x. * The derivative of sin x is cos x. Thus, the derivative of sin 3x is 3 cos 3x. Therefore, the derivative of sin x by first principle is cos x. We know that the derivative of sin x is cos x. So the derivative of sin x2 using this and using the chain rule is cos x2\u00b7 d/dx(x2). The derivative of sin(x) is cos(x). Why? The derivative of any given function is simply the slope of the tangent line to original function ## Derivative of sin x using the First Principle Method f\u2019(x) = limh\u21920 [sin x cos h + cos x sin h \u2013 sin x]/h f\u2019(x) = limh\u21920 [-sin x(1-cosh) + cos x sin h]/h sin (0/2)) + cos x (1) f\u2019(x) = \u2013 sin x(0) + cos x Thus, the derivative of sin x is cos x, is derived. ### Derivative of Sin x Examples Now, we have to find the derivative of sin (x+1), using the 1st principle. Hence, the derivative of sin (x+1), with respect to x is cos (x+1). Find the derivative of sin 2x. **To find:** derivative of sin 2x. Hence, the derivative of sin 2x is 2 cos 2x. : r/calculus : r/calculus Image 1: r/calculus icon Go to calculus r/calculus Image 3: r/calculus iconr/calculus Welcome to r/calculus - a space for learning calculus and related disciplines. We learned in class that the derivative of sin(x) is cos(x). New to Reddit? * Reddit reReddit: Top posts of October 6, 2016 * * * * Reddit reReddit: Top posts of October 2016 * * * * Reddit reReddit: Top posts of 2016 * * * * Reddit Meta * Games * Gaming News & Discussion * Other Games * Action Movies & Series * Animated Movies & Series * Comedy Movies & Series * Romance Movies & Series * Superhero Movies & Series * About Reddit * Best of Reddit", | |
| "feedback": "liitle bit small", | |
| "rating": null | |
| }, | |
| { | |
| "timestamp": "2026-03-07T18:08:36.330731", | |
| "original_input": "WHAT IS DERIVATIVE OF SINX", | |
| "parsed_question": null, | |
| "retrieved_context": null, | |
| "final_answer": "Derivative of Sine Function\n\nAssumptions\n- The function is f(x) = sin(x)\n- The variable x is a real number\n\nStep 1\nTo find the derivative of sin(x), we will use the definition of a derivative as a limit.\nf'(x) = lim(h -> 0) [f(x + h) - f(x)]/h\n\nStep 2\nWe will apply the definition to the sine function, using the angle addition formula for sine.\nf'(x) = lim(h -> 0) [sin(x + h) - sin(x)]/h\n\nStep 3\nUsing the angle addition formula for sine, we can rewrite sin(x + h) as sin(x)cos(h) + cos(x)sin(h).\nf'(x) = lim(h -> 0) [sin(x)cos(h) + cos(x)sin(h) - sin(x)]/h\n\nStep 4\nWe can simplify the expression by canceling out sin(x) and dividing the numerator and denominator by h.\nf'(x) = lim(h -> 0) [cos(h) + cos(x)sin(h)/h - 1]/1\n\nStep 5\nAs h approaches 0, cos(h) approaches 1 and sin(h)/h approaches 1.\nf'(x) = 1", | |
| "verifier_outcome": null, | |
| "user_feedback": "THE ANSWER SHOULD BE COSX", | |
| "rating": "negative" | |
| }, | |
| { | |
| "timestamp": "2026-03-07T18:09:56.957106", | |
| "original_input": "integration of sinx", | |
| "parsed_question": null, | |
| "retrieved_context": null, | |
| "final_answer": "Integration of Sine Function\n\nAssumptions\nThe function to be integrated is sin(x).\nThe variable of integration is x.\n\nStep 1\nTo integrate sin(x), we can use the basic integration rule.\n\u222bsin(x) dx = -cos(x)\n\nStep 2\nWe can verify this result by differentiating the result from step 1.\nd(-cos(x))/dx = sin(x)\n\nFinal Answer\n\u222bsin(x) dx = -cos(x)", | |
| "verifier_outcome": null, | |
| "user_feedback": "Good", | |
| "rating": "positive" | |
| } | |
| ] |