| Problem: | |
| Find the inverse of the following function: $\cos ^{-1}(-4 x-5)$ | |
| Answer: | |
| $\left\{\left\{x\to \fbox{$\frac{1}{4} (-\cos (y)-5)\text{ if }0\leq y\leq \pi $}\right\}\right\}$ |
| Problem: | |
| Find the inverse of the following function: $\cos ^{-1}(-4 x-5)$ | |
| Answer: | |
| $\left\{\left\{x\to \fbox{$\frac{1}{4} (-\cos (y)-5)\text{ if }0\leq y\leq \pi $}\right\}\right\}$ |