2次関数の最大最小から係数決定
Synopsis
問題＞ 関数 y=ax²−2ax+b (0 ≦ x ≦ 3) の最大値が 9 で，最小値が 1 であるとき，定数 a，b の値を求めよ. 「グラフが下凸とは ...
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