化简cosxsin(y-x)+cos(y-x)sinx=

化简cosxsin(y-x)+cos(y-x)sinx= 化简cosxsin(y-x)+cos(y-x)sinx cosxsin(y-x)+cos(y-x)sinx等于 判断下列函数的奇偶性：(1)y=(1+sinx+cosx)/(1-sinx-cosx) (2)y=cos(2x-5派/2)（3）y=sinxcosx(x-派/4)+cosxsin(x-派/4) 2cos(x+y)cosx-cos(2x+y)化简 化简sin(x+y)sin(x-y)-cos(x+y)cos(x-y)的结果是? 化简sin(x+y)cos(x-y)+cos(x+y)sin(x-y) y=√3cos²X+1／2sin2X 化简我得y=2cosXsin（X+π/3）但这题让求最大值最小值周期能不能再化简了? 函数y=sinxcos（x+π/4）+cosxsin（x+π/4）的对称中心点? 函数y=sinxcos(x+π/4)+cosxsin(x+π/4)的最小正周期是 y=sinxcos(x+π/4)+cosxsin（x+π/4)的最小正周期是 ：y' +y= cos x y= 化简sin(x+y)sinx+cos(x+y)cosx 化简sin(x+y)sinx+cos(x+y)cosx等于? 化简cos(x+y)sinx-sin(x+y)cosx sin(2x+y)/sinx-2cos(x+y) 化简 化简cos(x+y)sinx-sin(x+y)cosx 化简sin(x+y)sin(x-y)+cos(x+y)cos(x-y)除了展开,有简便算法么?