函数规律sin^2 π/6＋cos^2 π/3＋sin π/6 cosπ/3=3/4sin^2 π/9＋cos^2 5π/18＋sin π/9 cos5π/18=3/4观察以上式子得到一般规律式是?

函数规律sin^2 π/6＋cos^2 π/3＋sin π/6 cosπ/3=3/4sin^2 π/9＋cos^2 5π/18＋sin π/9 cos5π/18=3/4观察以上式子得到一般规律式是? 设角a=-35π/6,则2sin(π+α)cos(π-α)-cos(π+α)/ 1+sin^2α+sin(π-α)-cos^2(π+α)sina=sin(-35π/6)=sin(-6π+π/6)=1/2 cosα=根号3/22sin(π＋α)cos(π-α)-cos(π+α)/ [1+sin^2α+sin(π-α)-cos^2(π+α)]=2（-sinα)(-cosα）+cosα/[1+sin² 已知函数f(x)=sin(2x+π/6)+sin（2x+π/6）+2cos²x 函数f(x)=sin(x/2+π/6)cos(x/2-π/6)的最小值? 函数y=cos^2(3x+π/6)-sin^2(3x+π/6)化简 函数y=sin(π/2+x)cos(π/6-x)的最大值为 函数y=sin(π/2 +x)cos(π/6 -x)的最大值 函数y=2sin(x-π/6)+cos(x+π/3)的一条对成轴是 函数y=sin(x+π/2)cos(x+π/6)的单调递减区间是? 函数y=sin(x+π/2)cos(x+π/6)的单调递减区间是? 已知函数f(x)=cos^2(x-π/6)-sin^2x化简 函数f(x)=sin(2x+π/6),g(x)=cos(x+φ),|φ| 函数Y=sin(2x+π/3)cos(x-π/6)-cos(2x+π/3)sin(x-π/6)的图像的一条对称轴方程是多少 函数y=sin(x+11派)cos(x+7派)的最小正周期是多少sin和cos的周期都是2π所以y=sin(x+11π-10π)cos(x+7π-6π) 函数y=cos(π/6)cos(2x)+sin(π/6)sin(2x)的单调递减区间是?cos(π/6－2x)与cos(2x-π/6)单调递减区间一样吗？ 函数y=cos(π/6)cos(2x)+sin(π/6)sin(2x)的单调递减区间是?cos(π/6－2x)与cos(2x-π/6)单调递减区间一样吗？ 已知函数f（x）=［2sin（x-π/6）+√3sin x］cos x+sin^2x,x∈R 已知·函数f(x)=sin(2x-3/π)+cos(32x-6/π)+2cos²x-1 求函数的最小正周期