| Problem: | |
| Find the inverse of the following function: $\cos ^{-1}\left(\sqrt{x-7}\right)$ | |
| Answer: | |
| $\left\{\left\{x\to \fbox{$\cos ^2(y)+7\text{ if }0<y<\frac{\pi }{2}$}\right\}\right\}$ |
| Problem: | |
| Find the inverse of the following function: $\cos ^{-1}\left(\sqrt{x-7}\right)$ | |
| Answer: | |
| $\left\{\left\{x\to \fbox{$\cos ^2(y)+7\text{ if }0<y<\frac{\pi }{2}$}\right\}\right\}$ |