∫SIN2XCOSXDX補充2為平方
A2/3-A3/5+A4/7-A5/9+...級數(shù)的通項
A2/3-A3/5+A4/7-A5/9+...級數(shù)的通項
數(shù)學人氣：330 ℃時間：2020-10-01 23:22:46
優(yōu)質解答
[(-1)^(n+1)]A(n+1)/(2n+1)
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