Question

Let f ( x ) = 5 x and g(x)=2x^2. (Need answer in less than 2 hours!)

Answer 1

Answer: (b) (g o g)(5)

Explanation:

`f(x)=(5)/(x)}\qquad g(x)=2x^2\\\\\\g(f(5)):\ f(5)=(5)/(5)=1\qquad g(1)=2(1)^2=2\\\\\\g(g(5)):\ g(5)=2(5)^2=50\qquad g(50)=2(50)^2=\large\boxed{5000}\\\\\\f(f(5)):\ f(5)=(5)/(5)=1\qquad f(1)=(5)/(1)=1\\\\\\f(g(5)):\ g(5)=2(5)^2=50\qquad f(50)=(5)/(50)=(1)/(10)`