`e^(-2x)=`

A

`1+(2)/(1!)+(2^(2))/(2!)+(2^(3))/(3!)+....`

B

`1-(2)/(1!)+(2^(2))/(2!)-(2^(3))/(3!)+....`

C

`1+(2x)/(1!)+((2x)^(2))/(2!)+((2x)^(3))/(3!)+....`

D

`1-(2x)/(1!)+((2x)^(2))/(2!)-((2x)^(3))/(3!)+....`

Text Solution

Verified by Experts

The correct Answer is:
D
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