2sin(π-3)cos(π-3)怎么化简
(sinθcosπ/3)-(cosθsinπ/3)怎么化简得sin(θ-π/3)
怎样化简函数 cosπ/4cosπ/3-sinπ/4sinπ/3
三角函数化简[2cos^3θ+sin^2(π-θ)+sin(π/2+θ)-3]/[2+2cos^2(π+θ)+cos(-
根号2sinπ/32*cosπ/32*cosπ/16*cosπ/18 怎么化简
tana*[cos(3π-a)-sin(5π-a)]怎么化简,
化简求值sin(-20/3π)cos(43/6π)+sin(35/6π)cos-(17/3π)
cos^3α-sin^3α怎么化简
已知(3sinα+cosα)/(3cosα-sinα)=2,则2-3sin(α-3π)sin(1.5π-α)-[cos(
如何化简sin^2(-a-5π/2)-cos^2(a-7π/2)/{sin(a-3π/2)+cos(-a-3π/2)}
Sin(x+π/3)+2Sin(x-π/3)-根号3乘以Cos(2π/3 -x ) 化简化简
化简 sin(2π-a)sin(π+a)cos-π-a) / sin(3π-a)cos(π-a)
(1+sinα+cosα)*[sin(α/2)-cos(α/2)]/√(2+2cosα)化简 (3/2*π