化简Sin(2x+π/6)+Sin(2x—π/12)

sin^2(π/3-x)+sin^2(π/6+x) 化简sin(-2x) 化简 sin²x+sin²(x+2π/3)+sin²(x-2π/3) 化简(sin^2x-cos^4x+cos^2x-sin^4x)/(sin^2x-cos^6x+cos^2x-sin^6x) 化简 cos^2(x)*sin^2(x)-sin^2(x) 化简 cos^(2)(x)*sin^(2)(x)-sin^(2)(x) 化简sin^4x-sin^2x+cos^2x 化简:sin^4 x-sin^2 x+cos^2 x 化简(sin x+cos x-1)(sin x-cos x+1)/sin 2x 化简 sin^2(π/3,x）+sin^2(π/6+x） 化简Sin(2x+π/6)+Sin(2x—π/12) 化简sin（2π+x）cos（π-x）sin（π-x）/cos（x-π）sin（-π-x）sin（π+x） sin(x^2)/sin^2x 求导 化简[1-(sin^4 x-sin^2 xcos^2 x+cos^4 x)]/(sin^2 x)+3sin^2 x 化简(sin^2 x/sin x-cosx)-(sin x+cosx/tan^2 x-1) 2sin(x+π/4)sin(x-π/4)=? ∫sin(6x)sin(2x)dx=? sin^2(π/4 +x)