求高手帮忙化简f(x)=(sin2x+cos2x+1)/(根号2*sin(π/4+x))+cos(π/2+π)
问题描述:
求高手帮忙化简f(x)=(sin2x+cos2x+1)/(根号2*sin(π/4+x))+cos(π/2+π)
答
求高手帮忙化简f(x)=(sin2x+cos2x+1)/(根号2*sin(π/4+x))+cos(π/2+π)