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Question

If f(x)=sin(ex21)log(x1), then limx2f(x) is given by

A
-2
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B
-1
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C
0
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D
1
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Solution

The correct option is D 1

f(x)=limx2sin(ex21)log(x1)


This is 00 form so by using L Hospital rule , differentiating the numerator and denomirator


f(x)=limx2cos(ex21)(ex2)(1x1)f(x)=limx2cos(ex21)(ex2)(x1)f(x)=cos(e221)(e22)(21)f(x)=1


So option D is correct.



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