作业帮化简cos(180°+x)*sin(x+360°)/[sin(-x-180°)*cos(-180°-x)]
来源：学生作业帮助网 编辑：作业帮 时间：2024/05/06 07:43:43
化简cos(180°+x)*sin(x+360°)/[sin(-x-180°)*cos(-180°-x)]
化简cos(180°+x)*sin(x+360°)/[sin(-x-180°)*cos(-180°-x)]
化简cos(180°+x)*sin(x+360°)/[sin(-x-180°)*cos(-180°-x)]
cos(180°+x)*sin(x+360°)/[sin(-x-180°)*cos(-180°-x)]
=-cosx×sinx/[-sin(180°+x)][cos(180°+x)]
=-cosx×sinx/sinx(-cosx)
=1
cos x/sin x+sin x/(1+cos x) 化简.
化简cos(180°+x)*sin(x+360°)/[sin(-x-180°)*cos(-180°-x)]
化简(sin x+cos x-1)(sin x-cos x+1)/sin 2x
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
sin(360--x)cos(180+x)cos(90+x)
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
化简 cos^(2)(x)*sin^(2)(x)-sin^(2)(x)
化简sin^4x+cos^2x
化简cos^4x+sin^4x
化简:cos^4(X)-sin^4(X)
cos x/( 1-sin x)化简
化简(sin^2x-cos^4x+cos^2x-sin^4x)/(sin^2x-cos^6x+cos^2x-sin^6x)
化简：{cos(180*0+x)sin(x+360*0)}/sin(-x-180*0)cos(-180*0-x)