已知:sin(x+7π/6)=—1/4,求sin(x+7π/6)+cos^2 (23π/6 -x)的值

已知sin(x+π/6)=1/4,求sin(5π/6-x)+sin^2(π/3-x) 已知:sin(x+7π/6)=—1/4,求sin(x+7π/6)+cos^2 (23π/6 -x)的值 已知函数f(x)=(1+1 anx)sin^2x+m sin(x+π/4)sin(x-π/4) 已知sin(π/4+x)sin(π/4-x)=1/6,x(π/2,π),则sin4x=? 已知sin(x+π/3)=1/4,求sin(2π/3-x)+cos²(π/6-x) 已知sin(x+π/6)=1/3,求sin(5π/6-x)+sin^2(π/3-x) 已知 Sin(X+ 派/6)=1/4求 Sin(5/6派 - X)+Sin^2 (派/3 -X) 已知sin（x+π/6）=1/4,.求sin（7π/6+x）+cos2（5π/6-x）的值 已知sin(x+π/6)=1/4,求sin(x+7π/6)+cos^2 (11π/6-x)的值答案是11/16 已知:sin(x+π/6)=1/4,求sin(x+7π/6)+cos^2 (5π/6-x)的值 已知sin（x+π/6）=1/4,.求sin（7π/6+x）+cos2（5π/6-x）的值急急急 已知sin(x+π/6)=1/4,求sin(5π/6-x)+sin^2（11π/6-x）如题, 已知sinα（x+π/6）=1/4,则sin（5π/6-x）+sin（π/3-x）的平方=? 已知tan(x+π/6)=2,(1)若x∈(π/2,π),求sin(π/3-x)的值；（2）求sin（x+7π/6)sin(x-4π/3）的值 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[a-b]cos a-cos[b-a]sin a=3/5,b是第三象限角,求sin[b+5π/4]的值第一题1/2cos x-√3/2sin x第二题√3sin x+cos x第三题√2[sin x-cos x]第四题√2cos x-√6sin x 已知sin(x+π/6)=1/4,求sin(7π/6+x)+cos(5π/6-x)平方的值已知sin(x+π/6)=1/4,求sin(7/6π+x)+cos(5/6π-x)平方的值