Question

Diketahui f:R-->R dan g:R-->R, didefinisikan dengan f(x)=x^3+4 dan g(x)=2 sin x. nilai (fog)(1/2Π) adalah

Answer 1

Verified answer

Jawab

f(x) = x³ + 4
g(x) = 2 sin x

(fog)(π/2) =  f { g(π/2) }
= f {2 sin (π/2)}
= f { 2(1)}
= f(2)
= 2³ + 4
= 12