基本初等函数的导数公式:1(),()fxcfx、若则2(),()nfxxfx、若则3()sin,()fxxfx、若则4()cos,()fxxfx、若则01nnxcosxsinx5(),()xfxafx、若则6(),()xfxefx、若则7()log,()xafxfx、若则8()ln,()fxxfx、若则lnxaaxe1lnxa1x常函数幂函数三角函数指数函数对数函数5533..1(1)()(2)()(3)()sin(4)()(5)()cos(6)()3(7)()2ln(8)()logxfxxfxxfxxfxxfxxfxfxxfxx例用导数公式求下列函数的导数(9)()2(10)()lgxfxefxx3214232.(1)()(5)()91(2)()(6)()91(3)()(7)()log(4)()(8)()lgxxfxxfxfxxfxfxfxxxfxxfxx练习:求下列函数的导数比比赛赛:1)y=f(x)=322)(),3)(),14)(),yfxxyfxxyfxx求在点M(2,3)处切线的方程求在点M(2,2)处切线的方程求在点M(2,4)处切线的方程求在点M(1,1/2)处切线的方程112.).2yx求函数的图象上点(2,处的切线方程23.690,.yxxy曲线的一条切线方程为求切点的坐标4.3(1,3).y求曲线上过点的切线方程()()fxgx()()fxgx1、和(差)的导数:2、积的导数:()cfx()()fxgx推论:3、商的导数:(C为常数)()()fxgx()()()()fxgxfxgx()cfx2()()()()()fxgxfxgxgx(()0)gx导数的运算法则例题讲解:43(2)(2)(2)yxxxsin(4)21xxye(3)sincosyxx例题1:求下列函数的导数52(1)238yxx32311(2)5sinlog43xyxxxx32(3)(4)yxx2(4)(21)(32)xyxxe(8)tanyx2(5)21xyx(7)2lnxyx(6)5cosxyx练习:求下列函数的导数32(1)325yxx2532log(3)xxyx2(1)(21)(3ln2)yxx23(4)cosxxyx(2)sxyeinx1、求下列函数的导数作业854,5,6,7PA2.课本组