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Question

The value of limx0e2x21x2 using Maclaurin series is?

A
4
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B
3
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C
2
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D
1
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Solution

The correct option is C 2
limx0e2x21x2=?
We have to find the limit value using Maclaurin series.
The Maclaurin series of e2x2 is 1+2x2+2x4.
The Maclaurin series of x2 is x2.
limx0e2x21x2=limx01+2x2+2x41x2
=limx02x2+2x4x2
=limx02x2(1+x2)x2
=limx02(1+x2)
limx0e2x21x2=2

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