cos x/( 1-sin x)化简
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cosx/(1-sinx)化简cosx/(1-sinx)化简cosx/(1-sinx)化简1/(cosx/sinx-sinx/cosx)=sinxcosx/(cos²x-sin²x
cos x/( 1-sin x)化简
cos x/( 1-sin x)化简
cos x/( 1-sin x)化简
1/(cosx/sinx-sinx/cosx)=sinxcosx/(cos²x-sin²x)=sin2x/2cos2x=1/2tanx
cos x/sin x+sin x/(1+cos x) 化简.
化简(sin x+cos x-1)(sin x-cos x+1)/sin 2x
cos x/( 1-sin x)化简
化简 1-sin^4x-cos^4x/1-sin^6x-cos^6x
化简(1-cos^4x-sin^4x)/(1-cos^6x-sin^6x)
化简:(1+sin x-cos x)/(1+sin x+cos x) 谢
化简 1/2cos x-根号3/2sin x 根3sin x+cos x
化简[1-(sin^4x-sin^2cos^2x+cos^4x)/(sin^2)]+3sin^2x
化简[1-(sin^4 x-sin^2 xcos^2 x+cos^4 x)]/(sin^2 x)+3sin^2 x
化简(1)√3sin x+cos x (2)√2(sin x-cos x) (3)√2cos x-√6sin x
化简sin(x)(cos(x)+cos(3x)+cos(5x)+cos(7x))
化简sin(x)cos(x)cos(2x)
化简sin(x)cos(x)cos(2x)
sin x cos x cos 2x 化简
2cos x (sin x -cos x)+1
化简 cos^2(x)*sin^2(x)-sin^2(x)
化简sin^4x-sin^2x+cos^2x
化简:sin^4 x-sin^2 x+cos^2 x