Mathematics
Senior High
Solved
矢印を書いたところの展開が分かりません。
よろしくお願いします🙇♀️⤵️
240. (1) ((x+1)²e* dx=√(x+1)²(e*)'dx
= (x+1)²e* −√2(x+1)e* dx
= (x+1)² e * − 2 √(x+1)(e*)'dx
=(x+1)²e*−2{(x+1)e*−Se* dx}
=(x+1)²e*−2(x+1)e*+2Se* dx
=(x+1)²ex-2(x+1)e*+2e*+C
=(x²+1)e*+C
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回答ありがとうございます。
なぜか難しく考えていました🙇
普通に展開すれば良いだけですね。
助かりました☀️