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If S=Sigma(n=2)^(oo) ""^(n)C(2) (3^(n-2...

If `S=Sigma_(n=2)^(oo) ""^(n)C_(2) (3^(n-2))/(n!)` then S equals

A

`e^(3//2)`

B

`1/2e^(3)`

C

`e^(-3//2)`

D

`e^(-3)`

Text Solution

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The correct Answer is:
a
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