Question

Найти вторую производную функции
y=1/4x^2*(x+x^2)

Answer 1

y`=1/2x(x+x²)+1/4x²(1+2x)=1/2x²+1/2x³+1/4x²+1/2x³=3/4x²+x³
y``=3/2x+3x²