sin(3π/2-x)化简

化简 sin²x+sin²(x+2π/3)+sin²(x-2π/3) sin(3π/2-x)化简 化简2sin^2[(π/4)+x]+根号3（sin^x-cos^x）-1 化简[1-(sin^4 x-sin^2 xcos^2 x+cos^4 x)]/(sin^2 x)+3sin^2 x sin^2(π/3-x)+sin^2(π/6+x) 化简:(sinα-cosα)^2+sin4α/2cos2α 化简:sin^2x+sin^2(x+2π/3)+sin^2(x-2π/3) 化简[1-(sin^4x-sin^2cos^2x+cos^4x)/(sin^2)]+3sin^2x f(x)=cos(2x-x/3)+2sin(x-π/4)sin(x+π/4)sin(x+π/4)化简. 化简：（sinx）^2+(sin（x+π/3))^2+(sin(x+2π/3))^2 化简 sin^2(π/3,x）+sin^2(π/6+x） y=sin(x+π/3)sin(x+π/2)化简 化简sin(2x+π/3)-（根号3）sin²x+sinxcosx+(根号3)/2 f(x)=2sinx*sin(x+π/3) 化简 化简sin(-2x) 化简sin（2π+x）cos（π-x）sin（π-x）/cos（x-π）sin（-π-x）sin（π+x） 化简：sin(x+π/3)-√3cos(2π/3-x)+2sin(x-π/3)= sin(x+π/3)+2sin(x-π/3)-√3cos(2π/3 - x)化简、、、 化简sin(2x-pi)sin[x+(3/2)pi]/cos[x+(5/2)pi][1-sin(pi+x)]