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Let L=Lim(x rarr-2)(3x^(2)+ax+a+1)/(x^(2...

Let L=`Lim_(x rarr-2)(3x^(2)+ax+a+1)/(x^(2)+x-2)` .If L is finite,then
a) L=`4/3` b) L=13 c) L=-2 d) L=`-1/3`

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