If n be a positive integer such that `nleq 3`, then the value of the sum to n terms of the se
38 views · Published 13 October 2018 · 6:45 · Indexed 3 October 2026
Channel: Doubtnut · 2018 · Education
To ask Unlimited Maths doubts download Doubtnut from - https://goo.gl/9WZjCW If n be a positive integer such that `nleq 3`, then the value of the sum to n terms of the series `1.n-((n-1))/(1!)(n-1)+((n-1)(n-2))/(2!)(n-2)-((n-1)(n-2)(n-3))/(3!)(n-3)+.....` is
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