化简(2cos(x/2)^2-sinx-1)/(根号2sin(π/4+X))
来源:学生作业帮助网 编辑:作业帮 时间:2024/11/16 10:43:50
化简(2cos(x/2)^2-sinx-1)/(根号2sin(π/4+X))
化简(2cos(x/2)^2-sinx-1)/(根号2sin(π/4+X))
化简(2cos(x/2)^2-sinx-1)/(根号2sin(π/4+X))
[2cos(x/2)^2-sinx-1]/[√2sin(π/4+X)]
=[cosx+1-sinx-1]/[√2sin(π/4+X)]
=[cosx-sinx]/[√2sin(π/4+X)]
=√2[√2/2cosx-√2/2sinx]/[√2sin(π/4+X)]
=√2[cosπ/4cosx-sinπ/4sinx]/[√2sin(π/4+X)]
=√2[cos(π/4+x)]/[√2sin(π/4+X)]
=cos(π/4+x)/sin(π/4+X)
=cot(π/4+x)
cos^2x sinx 不定积分
cos^2x sinx 不定积分
化简2sinx*cosx*cos(2π-x)+cos(π+2x)*cosx*tanx
sin(2x+y)/sinx-2cos(x+y) 化简
f ' (sinx)=cos^2x,求f(x)
化简tan(3x/2)-tan(x/2)-sinx/(cos(3x/2)*cos(x/2))
化简sin^4x/sinx-cosx - (sinx+cosx)cos^2x/tan^2x-1
y=2cos^2 x+sinx
∫(1+sinx) / cos^2 x dx
sinx/cos^2X的原函数
cos(x)^2+sinx 求范围.
cos^2x+sinx单调区间
-sinx=cos((3π/2-x)从-sinx推导
化简√(2-2*sinx-cos^2*x)=
化简~·cos(2x+π/3)+sinx^2
化简 2sinx-2cos(x-60°)
急 cos的平方2分之x-sinx 化简
若cosx0,化简sinx+根号1-cos*2x