Question

Помогите решить!!!!!!!!!!!!!!!!!!!!!!!!

Answer 1

f(1) = 1

f(2) = - (2)^2 + f(1)^2 = -4+1 = -3

f(3) = -(3)^2 + f(2)^2 = -9 + (-3)^2 = -9+9 = 0

f(4) = -(4)^2  + f(3)^2 = -16 + 0 = -16