Question

Determine (a) dan (b) pake cara

Answer 1

G(x) = y  --> g⁻¹(y)= x
h(y) = z
g(3) = 8 --> g⁻¹(8) = 3
h(8) = 4

h g(3) = h {g(3)} = h (8) = 4

Answer 2

G(x) = y    ⇔    g(3) = 8

h(y) = z    ⇔    h(8) = 4


Ditanya:

a). g⁻¹(8) = x
               = 3

b). hg(3) = h(g(3))
               = h(8)
               = 4