In the figure, two circles intersect each other in points
A and
B. Seg
AB is the chord of both circles. The point
C is the exterior point of both the circles on the line
AB. From the point
C, tangents have been drawn to the circles touching at
M and
N. Prove that
CM=CN.
![598663.png](https://search-static.byjusweb.com/question-images/toppr_ext/questions/598663.png)