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If lim(xrarrinfty)((x^2+x+1)/(x+1)-ax-b)...

If `lim_(xrarrinfty)((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`

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The correct Answer is:
B
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PATHFINDER-LIMIT, CONTINUITY AND DIFFERENTIABILITY-QUESTION BANK
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  4. The limit of {1/xsqrt(1+x)-sqrt(1+1/x^2} as xrarr0

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