1/2+1/15+1/35+1/63+1/99+……+1/(2n-1)(2n+1)(n为正整数)求结果
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![1/2+1/15+1/35+1/63+1/99+……+1/(2n-1)(2n+1)(n为正整数)求结果](/uploads/image/z/14837604-60-4.jpg?t=1%2F2%2B1%2F15%2B1%2F35%2B1%2F63%2B1%2F99%2B%E2%80%A6%E2%80%A6%2B1%2F%282n-1%29%282n%2B1%29%28n%E4%B8%BA%E6%AD%A3%E6%95%B4%E6%95%B0%29%E6%B1%82%E7%BB%93%E6%9E%9C)
1/2+1/15+1/35+1/63+1/99+……+1/(2n-1)(2n+1)(n为正整数)求结果
1/2+1/15+1/35+1/63+1/99+……+1/(2n-1)(2n+1)(n为正整数)求结果
1/2+1/15+1/35+1/63+1/99+……+1/(2n-1)(2n+1)(n为正整数)求结果
1/2+1/2(1/3-1/5+1/5-1/7.) 算下首末就好 裂项公式要记下