已知sin(x-π/4)=-5/13,sin2x的值

已知sin(π/4--x)=5/13,0 已知sin(π/4-x)=5/13,且0 已知sin(x+π/6)=1/4,求sin(5π/6-x)+sin^2(π/3-x) s = 2*sin(x)-sin(2*x)+2/3*sin(3*x)-1/2*sin(4*x)+2/5*sin(5*x)用matlab画图,求教啊 已知sin(π/4+x)=12/13(π/4 已知sin(π/4-x)=12/13,0 已知sin(π/4-x)=12/13,0 已知sin(x+π)=4/5,且sinxcosx 已知sin(TT/4+x)=5/13,0 S (sin 5x) (sin 3x) dx = 已知函数f(x)=(1+1 anx)sin^2x+m sin(x+π/4)sin(x-π/4) 已知-π/2＜x＜0,sin x+cos x=1/5求sin 2x+2 sin 已知sin(π/2-x)+sin(π-x)/cos(-x)+sin(2π-x)=2009,则tan(x+5π/4)等于?已知sin(π/2-x)+sin(π-x)/cos(-x)+sin(2π-x)=2009,则tan(x+5π/4)等于（） A.-2009 B.-1/2009 C.1/2009 D.2009 已知sinα（x+π/6）=1/4,则sin（5π/6-x）+sin（π/3-x）的平方=? 已知sin(x+6/π)=4/1,求sin(6/5π-x)+sin^2(3/π-x)的值 已知sin(x+π/6)=1/4,求sin(5π/6-x)+sin方(π/3-x)的值 已知sin(x+π/6)=1/4,求sin(5π/6-x)+sin^2（11π/6-x）如题, 已知sin(x+π/6)=1/3,求sin(5π/6-x)+sin^2(π/3-x)