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

The sum of the series
`1/(2!)-1/(3!)+1/(4!)-…` 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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