崩坏3矩阵空间最终难度第五关怎么过

2024-12-29 19:28:32
推荐回答(1个)
回答1:

(1+sin2x)/(1+sin2x+cos2x)
=(sin 2x+cos 2x+2sinxcosx)/(sin 2x+cos 2x+2sinxcosx+cos 2x-sin 2x)
=(sin 2x+cos 2x+2sinxcosx)/(2cos 2x+2sinxcosx)
=(tan 2x+1+2tanx)/(2+2tanx)