Mathematics
Senior High
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[]の部分なんですが、どうすればcos6xに変形出来ますか?どなたか教えてください🙇♀️
(2) y'=5sin4x (sin x) cos 5x
+sin5x (-sin 5x). (5x)
= 5sin¹x (cos x)cos 5x+sin5x(-sin 5x).5
= 5sinx(cos x cos 5x - sin x sin 5x)
= 5sin¹xcos6x
1
2x1
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理解できました!ありがとうございます🙇♀️