Mathematics
Senior High

答えの分子の2がどうやって出たものなのか分かりません、
教えてください🙏

次の不定積分を求めよ (1) S xpl+ix S COS *(4) S₁+sinx -dx
4x dx √ √ ² + dx = √ 2(x² +1Y₂₁ 2 x² +1 x² +1 -2 = 2log (x²+1) +C 346 (1) S.
数3

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