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The coefficients of x^(n)" in "(1+(x)/(1...

The coefficients of `x^(n)" in "(1+(x)/(1!)+(x^(2))/(2!)+….+(x^(n))/(n!))^(2)` is

A

`(2^(n))/(n!)`

B

`(2^(n)-1)/((n-1)!)`

C

`n!`

D

None of these

Text Solution

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The correct Answer is:
A
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