已知sin(a+pie/3)+sina=-4根号3/5,-pie/2

已知sin(a+pie/3)+sina=-4根号3/5,-pie/2 求函数y=2cos(x+pie/4)cos(x-pie/4)+根号3*sin2x的最小正周期和值域 关于x的方程根号2sin(x+pie/4)=2m在【0,pie]有相异2根,m取值范围 已知w>0,函数f(x)=sin(wx+pie/4)在(pie/4,pie)单调递减,求w的取值范围 已知sin(a+π/3)+sina=-(4倍根号下3)/5,-π/2 已知sin(a+π/3)+sina=-4根号3/5 -π/2 已知sin(a+π/3)+sina=-4根号3/5,-π/2 pie 已知sin（a＋派/3）+sina＝-(4根号3)/5,－派/2 若a属于(0,pie),且sina的平方+cos2a=1/4,则tana的值等于, 已知sin(A+π/4)+sin(A-π/4)=根号2/3 1.求sinA的值 2.求【sin(A-π/4)】/【1-c 已知sina-cosa=-根号3/2,则sin a*cos a=