Mathematics
Senior High

2sinx/2cosx/2はどのようにしたらsinxになるのですか?
sin2xになると思ったのですが💦

D 2 S 242 (1) (sin +cos;) x 2 2) gol (S-) dx 2 = - S x 2 xb x (sin+2sin cos+cos d = √( 1 + sin x)dx = x = cos x + C 2 +9)=

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