e^sin x（xcos x-（sin x/cos²x））的不定积分怎么算

cos xsin b-sin xcos b和sin xcos x- e^sin x（xcos x-（sin x/cos²x））的不定积分怎么算 sin^2xcos^3x的不定积分, ∫sin²xcos³x dx 求不定积分cos2x/sin^xcos^x ∫1/(sin^2xcos^2x) sin^2xcos^2x不定积分 1/(sin^4 xcos^4 x)积分 sin^8X+cos^8X+4sin^2Xcos^2x-2sin^4xcos^4X(化简） (1-(sin^4x-sin^2xcos^2x+cos^4x)/sin^2x +3sin^2x 化简[1-(sin^4 x-sin^2 xcos^2 x+cos^4 x)]/(sin^2 x)+3sin^2 x 1-2sin xcos x/cos的平方x lim(x趋于0)(x^2-sin^2xcos^2x)/((x^2)sin^2x) 求函数f(X)=sin xcos x + cos x + sin x 的最大 最小值 求证 cos*xcos*y + sin*xsin*y + sin*xcos*y + xin*ycos*x = 1cos*xcos*y + sin*xsin*y + sin*xcos*y + sin*ycos*x = 1注意：[*] 的意思是 [ ^2 ]写下左右过程.. 求不定积分(1/sin^2xcos^2x)dx 求不定积分,∫sin^2xcos^2x dx 2sinxcosx/sin²xcos²x怎么化简?