Question

Find the area of the region enclosed between the two circles x² + y² = 1 and (x - 1)² + y² = 1.

Answer 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 :

Comments

Is there any easy way

---

And where is C in the diagram