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,x−y=1,−x+y=1 and −x−y=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. ∴AreaADCB=4×AreaOBAO =4∫10(1−x)dx =4(x−x22)10 =4[1−12] =4(12) =2 sq. units