Find the area of the region enclosed between the two circles x2 + y2 = 1 and (x - 1)2 + y2 = 1.
We have,
x2 + y2 = 1 ...........(i)
and (x - 1)2 + y2 = 1......(ii)
From eqns. (i) and (ii), we get points of intersection as :
