1/2x^3+7 производные

Question

1/2x^3+7 производные

Answer 1

F(x)=1/2x^3+7
f`(x)=1/2 × 3 × x^(3-1 ) = 3/2 x^2

Answer 2

F(x)= 1/2x^3 +7=2x^(-3) +7 

f '(x)= -3*(2x^(-3-1)) +0 = -3*2x^(-4)=-3/2x^4