sin方(2x-π/6)+sin(2x-π/6)化简
化简sin的2次方(三分之π-x)+sin的二次方2(六分之π+x)
已知sin(x+π/6)=1/3,求sin(5π/6-x)+sin^2(π/3-x)
化简sin(2π+x)cos(π-x)sin(π-x)/cos(x-π)sin(-π-x)sin(π+x)
已知sinα是方程5x^2-7x-6=0的根求sin方{(2k+1\2)π-α
设函数f(x)=sin(x+6分之派)+2sin方二分之x,
1.已知sin(π/6-x)=1/4,sin(π/6+2x)=?
化简函数fx=sin(2x+π/6)+2sin^2x
已知函数f(x)=2cos(x-π/6)sin(x+π/6)-√3*(sin(x-π/6))^2+sin(x-π/6)c
已知函数f(x)=cos(2x-π/3)+2sin(x-π/4)sin(x+π/4)=sin(2x-π/6) ,
已知f(x)=2sin(2x+π/6),
设关于x的方程sin(2x+π6
已知函数f(x)=sin(2x+π/6)+sin(2x-π/6)+2cos²x