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(a)Let f(x)=(sqrt (x+3))/(x+1),then left...

(a)Let `f(x)=(sqrt (x+3))/(x+1)`,then left hand limit `underset (x rarr -3)lim -f(x)=………….`

A

0

B

`1/2`

C

`-1/2`

D

does not exist

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