1.

The sum to 'n' terms of the series tan−1(12)+tan−1(29)+tan−1(18)+tan−1(225)+tan−1(118)+.....∞ terms

Answer»

The sum to 'n' terms of the series
tan−1(12)+tan−1(29)+tan−1(18)+tan−1(225)+tan−1(118)+.....∞ terms




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