sin(x+π/4)怎么化简?
sin(x+π) sin(x+3/2π)怎么化简?
怎么化简三角函数sin( -x- 兀/2)?
方程化简为:2sin( x+π4)=a即 sin( x+π4)=
sin^2X-sinx+3怎么化简,过程,谢谢了(sin^2X是SINx的平方)
已知函数f(x)=cos(2x-π/3)+2sin(x-π/4)sin(x+π/2) 化简为sin的形式
sin(x+11π/6)=sin(x-π/6)怎么得到的
cos(π/4+x)怎么化简成sin(π/4-x)?
化简函数f(x)=[(1+cos2x)²-2cos2x-1]/[sin(π/4+x)*sin(π/4-x)]
(sinθcosπ/3)-(cosθsinπ/3)怎么化简得sin(θ-π/3)
根号sin平方2x怎么化简
化简求值:sin(π4−3x
已知函数fx=(1+1/tanx)sin^x-2sin(x+π/4)sin(x-π/4)