sin(П/4-3x)cos(П/3-3x)-cos(П/6+3П)-sin(П/4+3П)
sin(П/4-3x)cos(П/3-3x)-cos(П/6+3П)-sin(П/4+3П)
化简(1)√3sin x+cos x (2)√2(sin x-cos x) (3)√2cos x-√6sin x
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) ,
sinx/(sin^3x+cos^3x)dx不定积分
求值:sin(π/4+3x)cos(3/π-3x)+cos(π/6+3x)cos(π/4+3x)
化简[1-(sin^4x-sin^2cos^2x+cos^4x)/(sin^2)]+3sin^2x
已知函数f(x)=cos(2x-pi/3)+2sin(x-pi)*sin(x+pi/4)
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
sin(sin(sin(sin(x)=cos(cos(cos(cos(x),X等于多少?
证明sin^2(x)+cos^2(x+30)+sin(x)cos(x+30)=3/4
参数方程化为普通方程 x=(sinθ+cosθ)/(2sinθ+3cosθ) y=sinθ/(2sinθ+3cosθ)