化简:sin(π/3+4x)+cos(π/6-4x)
化简2sin^2[(π/4)+x]+根号3(sin^x-cos^x)-1
已知函数f(x)=cos(2x-π/3)+2sin(x-π/4)sin(x+π/4)=sin(2x-π/6) ,
求值:sin(π/4+3x)cos(3/π-3x)+cos(π/6+3x)cos(π/4+3x)
[(sin x-cos x)/(sin x+cos x)]^4 求定积分 积分区间0-π/4
化简sin(3π-x)cos(x-3/2)cos(4π-x)/tan(x-5π)cos(π/2+x)sin(x-5/2π
求化简数学公式哦[3sin^2(x/2)+cos^2(x/2)-4sin(x/2)cos(x/2)]/tan(π+x)化
函数y=【cos(3x+π/4)-sin(3x+π/4)】/[cos(3x+π/4)+sin(3x+π/4)]的定义域,
1.y=cos^4x+sin^4x 求周期 2.y=(sin2x+sin(2x+π/3))/( cos2x+cos(2x
化简(1)√3sin x+cos x (2)√2(sin x-cos x) (3)√2cos x-√6sin x
化简sin(2π+x)cos(π-x)sin(π-x)/cos(x-π)sin(-π-x)sin(π+x)
sin(π/4-3x)cos(π/3-3x)- sin(π/4+3x)sin(π/3-3x)=
化简:1.【(sin^2)(-X-π) *cos(π+X)cosX】/【tan(2π+X) *(cos^3 (-X-π)