Mathematics
Senior High
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この問題の解き方を教えて頂きたいです欲しいです！
答えは最大値が8/9(8分の9)
最小値が－2 です！
CHECK 91,
関数 y=2cos' x-sinx-1 (0≦x<2π) の最大値と最小値を求めよ。
[13 東京電
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わかりました！ありがとうございます！