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Question

Using the method of integration find the area bounded by the curve |x|+|y|=1

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Solution

The required region is bounded by lines x+y=1,xy=1,x+y=1 and xy=11
The area bounded by the curve |x|+|y|=1 is represented by the shaded region ADCB
The curve intersects the axes at points A(0,1),B(1,0),C(0,1) and D(1,0).
It can be observed that the given curve is symmetrical about x-axis and y-axis.
Area ADCB=4×Area OBAO
=410(1x)dx
=4(xx22)10
=4[112]
=4(12)
=2 sq. units
398395_428550_ans_4d09f4a49f1e4b22b8f92bef5fe78854.png

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