Mathematics
Senior High
数Iの問題です。解き方を教えてください🙇♀️
IB
*93 (1) 2<x<5, 3<y<4のとき, 3x+5y, 4x-2y の値の範囲を求めよ。
(2) 2≦x≦3,6≦y<9 のとき, xyの値の範囲を求めよ。
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