基本求导公式: (1)(C)′=0 1)l(0ga)7 2)(x)=4x1 In a (3)(Sinx)′=cosx, (12)(nx) (4)(cos x)=-sin x (13)(arcsin x)'I (5)(tan x)'=sec2x, √h- (6)(cot x)=-cScLx, (14)(arccos x) (7(sec x)'=sec x tan x, (8)(CSc x)=-cSc x cot x, (15)(arctan x) (9)(ary'=ar In a 1+x 10)(ea)′=ex, (16)(arctan x) 1+x基本求导公式： (16) (arctan x ) 2 1 1+ x = − 。 (1) ( C)  = 0 ， (2) (xm)  =m xm− 1 ， (3) (sin x )  =cos x ， (4) (cos x )  = −sin x ， (5) (tan x )  =sec 2x ， (6) (cot x )  = −csc 2x ， (7) (sec x )  =sec x tan x ， (8) (csc x )  = −csc x cot x ， (9) ( a x )  = a x ln a ， (10) ( ex )  = ex ， (12) (ln x )=x1 ， (13) (arcsin x )= 2 1 1− x ， (14) (arccos x ) =− 2 1 1− x ， (15) (arctan x )= 2 1 1+ x ， (11) (log a x )= x ln a 1 ， ( a>0, a  1 )