Mathematics
Senior High
この問題全て解き方が分かりません。
[Ⅲ] 関数f(x) = |x2 - 5x + 4| - x +4について, 以下の設問に答えなさい.
(1) 不等式f(x)≦3を解きなさい.
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(2) 関数f(x)が極大となるときのxの値と,その極大値を求めなさい。
TU
(3) 座標平面上で, y = f(x)のグラフとx軸とy軸に囲まれた部分の面積を求めなさい.
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