Two circles having radii aaand bb touch each other externally. If cc is the radius of another circle which touches these two circles as well as a common tangent to the two circles, how do we prove that 1/sqrtc=1/sqrta+1/sqrtb1√c=1√a+1√b?
1 Answer
Jun 16, 2018
see explanation.
Explanation:
Let
In
Similarly,
In
As