Question

30 БАЛЛОВ!!!!Найдите производную функции)))

Answer 1

А)f`(x)=1/2*1/x²
б)f`(x)=-2/x² -2
в)f`(x)=[(2x-2)(x+1)-(x²-2x)]/(x+1)²=(2x²+2x-2x-2-x²+2x)/(x+1)²=
=(x²+2x-2)/(x+1)²
г)f`(x)=[(3x²-2)(x²+2)-2x(x³-2x+3)]/(x²+2)²=
=(3x^4+6x²-2x²-4-2x^4+4x²-6x)/(x²+2)²=(x^4+8x²-6x-4)/(x²+2)²