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If (x^(2)+x+1)/(x^(2)+2x+1)=A+B/(x+1)+C/...

If `(x^(2)+x+1)/(x^(2)+2x+1)=A+B/(x+1)+C/(x+1)^(2)` then A - B =

A

4C

B

4C+1

C

3C

D

2C

Text Solution

Verified by Experts

The correct Answer is:
D
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