(1+x^2/(2!)+x^4/(4!)+....oo)^2 =...

`(1+x^2/(2!)+x^4/(4!)+....oo)^2` =

A

`1+(2x^2)/(2!)+(2^3x^4)/(4!)+(2^5x^6)/(6!)+....oo`

B

`1+(2x^2)/(2!)+(2^2x^4)/(4!)+(2^3x^6)/(6!)+....oo`

C

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

D

`e^(2x) +e^(-2x)`

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Verified by Experts

The correct Answer is:

A

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