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If underset(xtooo)lim((x^(2)+x+1)/(x+1)-...

If `underset(xtooo)lim((x^(2)+x+1)/(x+1)-ax-b)=4,` then

A

`a=1, b=4`

B

`a=1,b=-4`

C

`a=2,b=-3`

D

`a=2,b=3`

Text Solution

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The correct Answer is:
B
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