Question

ПОМОГИТЕ ОЧЕНЬ СРОЧНО!!! ДАЮ 30 БАЛЛОВ!​

Answer 1

f(x) = 1/x

f(x + 5) = 4f(x + 8)

1/(x + 5) = 4*1/(x + 8)

x + 8 = 4(x + 5)

x + 8 = 4x + 20

3x = -12

x = -4

f(-4 + 5) = f(1) = 1

4f(-4+8) = 4f(4) = 4*1/4 = 1