Try the following GMAT Problem Solving question on functions and algebraic manipulation.
Question 44:
The function $f$ is defined by $f(x)=1x^2$ for all values of $x$. What is $f(f(x))$ ?

$\quad 0$

$\quad x^22x$

$\quad x^2+2x$

$\quad x^42x^2$

$\quad x^4+2x^2$
Leave a Reply