WBJEE · Maths · Permutation Combination
The sum of the infinite series \(1+\frac{1}{2 !}+\frac{1.3}{4 !}+\frac{1.3 .5}{6 !}+\ldots \ldots\). is
- A \(e\)
- B \(e^2\)
- C \(\sqrt{e}\)
- D \(\frac{1}{e}\)
Answer & Solution
Correct Answer
(C) \(\sqrt{e}\)
Step-by-step Solution
Detailed explanation
Hints : \(\mathrm{T}_{\mathrm{n}}=\frac{1.3 .5 \ldots(2 n-1)}{\mid 2 n}\)…
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