Mathematics
Junior High
Resolved
(4)がわかりません!教えてください!答えは3です!
|3|a+b=3, ab=1のとき, 次の式の値を求めなさい。
※口(1)d+ab+
口(3) -2ab +
口(4)+
1
b
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わかりました!ありがとうございます!