已知sin(x+π4)=25
已知函数f(x)=sin(ωx+π4)
已知sin(x+π4)=−34
已知sin(x+π6)=14
已知函数f(x)=2sin(x−π4)•sin(x+π4)+sin2x
已知函数f(x)=23sin(x2+π4)cos(x2+π4)−sin(x+π).
已知函数f(x)=sin(π2+x)cos(−x)+4sinx2cos3x2−sinx,
已知函数fx=(1+1/tanx)sin^x-2sin(x+π/4)sin(x-π/4)
已知函数f(x)=2sin(x+π3)
已知函数f(x)=cos2x/[sin(π/4-x)]
已知函数f(x)=2√3sin(x+π/4)cos(x+π/4)-sin(2x+π).求f(x)的最小正周期
已知函数f(1+cotx)sinx^2-2sin(x+π/4)sin(x-π/4)
1.已知sin(π/6-x)=1/4,sin(π/6+2x)=?