We overheard a teacher telling a student to use the inverse when the teacher really meant find the reciprocal.
These terms are NOT interchangeable.
Here is an example: take the function f(x) = x2
The inverse is f-1(x)=√x (in fact this is only a function when the domain is restricted)
The reciprocal is f(x) = 1/x2
f-1(x) ≠ 1/f(x)
DON’T MAKE THIS MISTAKE !!!