Question

f(x)=sin(π-2×)+sin(π/2+2×)化简？

Answer 1

解：f(x)=sin(π-2x)+sin(π/2+2x)=sin2x+cos2x，请参考，希望可以帮到你

Answer 2

f(x)
=sin(π-2x)+sin(π/2+2x)
=sin2x + sin[π-(π/2+2x)]
=sin2x + sin(π/2-2x)
=sin2x +cos2x