题目内容
解:(1)y′=(x6)′=6x6-1=6x5;
(2)y′=
(3)y′=(x-2)′=-2x-3;
(4)y′=()′=()′=
(1)y=x2+ax+b;(2)y=
(1)y=(2x2+3)(3x-1);(2)y=(-2)2;(3)y=x-sin·cos;(4)y=3x2+xcosx;(5)y=tanx;(6)y=ex·lnx;(7)y=lgx-.
(1)y=
(2)y=alnx+2ex·x-5.
(1)y=;
(2)y=-3x+x2.
(1)y=x(x2++);
(2)y=(+1)(-1).