若sin(3π-2)=根号2sin(2π+β),根号3cos(-α)=-根号2cos(π+β)0

若sin(3π-α)=根号2sin(2π+β)已知sin(3π-α)=根号2 sin(π-β),根号3 cos(-α)= - 根号2 cos(π+β) 且0 若sin(3π-α)=(根号2)sin(2π+β),(根号3)cos(-α)=(-根号2)cos(π+β),且0＜α＜π,0＜β＜π,求sinα,sinβ的值 已知sin(π-α)+sin(5π/2+α)=根号2/3(π/2 已知sin(π/6+a)=（根号3）/3,求sin(2π/3+a)? sin(α+4/π)+sin(α-4/π)=3/根号下2 已知函数f(x)=2根号3sin平方x-sin（2x-π/3) 求证 cos（A）+ 根号3sin(A)=2sin(π/6+A) 求证:(根号3)*sinα+cosα=2sin(α+π/6) 化简sin(α+β)+sin(α-β)+2sinαsin(3π/2-β)= 化简sin(2x+π/3)-（根号3）sin²x+sinxcosx+(根号3)/2 若sin(3π-2)=根号2sin(2π+β),根号3cos(-α)=-根号2cos(π+β)0 f(x)=2sinπ/4cosπ/4- 2根号3sin^2π/4+根号3 f(x)=2sinπ/4cosπ/4-2根号3sin^2π/4+根号3 求函数y=根号3sin(π/3-2x)-cos2x的最小值（根号3）sin 求函数f(x)=2sin(π-x)sin(π/2-x)+2根号3sin^2x-根号3的单调递减区间 sin(3π-α)=根号sinα+cosα=根号2/4.0＜α＜π,求-sinα-cosα的值…… 根号2sin(x+π/4)化简 根号下1-sin^2(3)=?