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The sum of the series (1)/(2!) -(1)/(3!)...

The sum of the series `(1)/(2!) -(1)/(3!)+ (1)/(4!)- cdots ` upto infinity is

A

`e^(-2)`

B

`e^(-1)`

C

`e^(-1//2)`

D

`e^(1//2)`

Text Solution

Verified by Experts

The correct Answer is:
B
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