Mathematics
Undergraduate
微分の問題です。（3）、（4）の解き方がわかりません。わかる方いらっしゃいますか？？
問題2
次の関数を変数について微分せよ。ただしα > 0 は定数とする.
(1) cos x,
(2) cos (a²), (3) cos' (a), (4) exp [cos2 (a")].
.
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