已知sin(x+π6)=14
已知sin(x+π6)=14
已知函数f(x)=sin(2x+π6)+sin(2x−π6)+2cos2x.
已知函数f(x)=sin(x+π6)−cos(x+π3)+cosx,
已知函数f(x)=2sin(13x−π6),x∈R
已知函数f(x)=sin(2x−π6),x∈R.
已知函数f(x)=2sin(13x−π6),x∈R.
已知sin(x+π/6)=1/3,求sin(5π/6-x)+sin^2(π/3-x)
已知函数f(x)=sin(ωx+π4)
已知函数f(x)=2sin(x+π3)
已知f(x)=2sin(2x+π/6),
1.已知sin(π/6-x)=1/4,sin(π/6+2x)=?
已知函数f(x)=sin(2x−π6)+cos2x.