If a=∑∞n=1(2n(2n−1)!) and b=∑∞n=1(2n(2n+1)!). Find value of [a] + [3b] where [ ] denotes greatest integer function or integral value of x.

If a=∑∞n=1(2n(2n−1)!) and b=∑∞n=1(2n(2n+1)!). Find value of

1.	If a=∑∞n=1(2n(2n−1)!) and b=∑∞n=1(2n(2n+1)!). Find value of [a] + [3b] where [ ] denotes greatest integer function or integral value of x.
Answer» If $a = \sum_{n = 1}^{\infty} (\frac{2 n}{(2 n - 1)!})$ and $b = \sum_{n = 1}^{\infty} (\frac{2 n}{(2 n + 1)!})$ . Find value of [a] + [3b] where [ ] denotes greatest integer function or integral value of x.

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If a=∑∞n=1(2n(2n−1)!) and b=∑∞n=1(2n(2n+1)!). Find value of [a] + [3b] where [ ] denotes greatest integer function or integral value of x.

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