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Question

limx7x25x+6x2+x+1= ______

A
7
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B
0
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C
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D
1
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Solution

The correct option is A 7
Given, limx7x25x+6x2+x+1
Dividing the numerator and denominator of the fraction by x2, we get
limx75x+6x21+1x+1x2
Substituting x= or 1x=0, we get
=75(0)+6(0)1+1(0)+1(0)=71=7

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