化简2sinxcosx+cos2x

化简2sinxcosx+cos2x 化简：y=cos2x+2sinxcosx-sin2x ∫cos2x/(sinxcosx)^2dx 化简√2sinxcosx+√2/2 cos2x 化简:f(x)=sinxcosx+[(根号3)/2]cos2x Y=cos2X-2√3sinxcosx化简 y= 4cos2x+4 sinxcosx－2 化简 化简f(x)=cos2x+sinxcosx+1 求2sin2X-SINXCOSX+COS2X的值 那个是加号，2sinxcosx+cos2x sinxcosx的导数是1/2cos2x还是cos2x 三角函数 cos2x+2根号3sinxcosx 化简, 具体点的步奏 已知tanx=2,求2sin2x-sinxcosx cos2x 2sin2x+2sinxcosx如何变换为1-cos2x+sin2x 1-2sinxcosx/cos2x-sin2x=1-tanx/1+tanx 1+cos2x+√3/2*(sinxcosx)化简具体步骤 已知函数f(x)=2sinxcosx+cos2x(x 如何化简f(x)=2sinxcosx+cos2x-1