Question #73ed2

1 Answer
Feb 12, 2018

The answer is undefined.

Explanation:

Some people might say that the answer is #25/24#, and technically, they aren't wrong, because:

#f(f^-1(x))=x#

and in this case:

#sin(sin^-1(25/24))=25/24#

But this actually isn't true. If you try to simplify the problem, you'll find that the domain of #sin^-1x# is [#-1#, #1#], and #25/24# is outside of that (basically, #sin^-1# literally can't take in numbers bigger than #1# or smaller than #-1#).

Therefore, it cannot be simplified further.