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If |x| lt 1 then (d)/(dx) (1-2x + 3x ^(2...

If `|x| lt 1` then `(d)/(dx) (1-2x + 3x ^(2) +…)=`

A

`(1)/((1+x )^(2))`

B

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

C

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

D

none

Text Solution

Verified by Experts

The correct Answer is:
C
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