jika f(x) = (x-3x+1)3 maka f'(x)=

langsung aja y

fof`¹(x) = x

f{f`¹(x)} = x

(f`¹(x) - 3f`¹(x) + 1)3 = x

3f`¹(x) - 9f`¹(x) + 3 = x

-6f`¹(x) + 3 = x

6f`¹(x) = 3 - x

f`¹(x) = (3-x) / 6

semoga berguna +_+