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Question

The area bounded by y=xe|x| and lines |x|=1,y=0 is

A
4 sq units
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B
6 sq units
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C
1 sq units
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D
2 sq units
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Solution

The correct option is D 2 sq units
|x|=1
x=±1
y=xe|x|={x.ex,1<x<0x.ex,0<x<1}
Required area =01xexdx+10xexdx
=[x.exex]01+{x.exex}10
=|{(01)(1.ee)}|+|{(ee)(01)}|
=1+1=2 sq units

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