Mathematics
Senior High
関数の増減の問題でX＝4分のΠと−4分のΠになるのはなぜですか？
1
--2=
cos'x
1-2cos' x
(2) f'(x) =
2
COs?
用金
において,f(x) =1
-くx
2
Tπ
Tπ
となるxは x〒
4
4
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