jika : a. f(x) = 5x-2 , g(x) 2x b. f(x) = 4-3x , g(x) 2/ 3x-1 c. f(x) = 2x/3x-1 , g (x) 5x tentukan gof(x)

a. gof = g(f)
= g(5x - 2)
=2(5x - 2)
= 10x - 4
b. gof = g(f)
= g(4 - 3x)
= 2/3(4 - 3x) - 1
= 2/12 -9x - 1
= 2/11 - 9x