If y = 1 - x +(x^(2))/(2!) - (x^(3))/(3...

If ` y = 1 - x +(x^(2))/(2!) - (x^(3))/(3!) + (x^(4))/(4!) - ..., " then" (d^(2) y)/(dx^(2)) ` is equal to

A

x

B

`-x`

C

`-y`

D

y

Verified by Experts

The correct Answer is:

D

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