Question

NEED MATH HELP WILL GIVE MEDAL!!

Answer 1

Here is the question

Answer 2

And the possible answers
A 343
B 67
C 4
D -4

Answer 3

One minute let me look at the question.

Answer 4

This literally makes no sense.... sorry I can't help ya here.

Answer 5

\((f\circ f^{-1})(x) ~~=~~ f(~f^{-1}(x)~) ~~=~~ f^{-1}(~f(x)~) ~~=~~ x\)

Yes?

Answer 6

composite of function and its inverse is always \(x\).

Answer 7

So no matter what \(f\) is, \((f\circ f^{-1})(x) = x\)

So what is \((f\circ f^{-1})(4)\)?

Answer 8

Yeah i know it makes no sense haha thats why im here

Answer 9

@geerky42 Im sorry i dont understand

Answer 10

You did know that \(f(f^{-1}(x))\) is always \( x\), right?