Question

if f(x)= 2x^2 , then f(2)-f(1)/f(2)+f(1)=​

Answer 1

Answer:

take x= 1. => f (1)= 2×1 = 2

x=2 => f (2) = 2×4 = 8

f (2) - f (1)/ f (2) + f (1) = 8-2/8+2=(32-1+8)/4 = 39/4