Question

Prove that the lengths of the tangents drawn from an external point to a circle are
equal.
Using the above, do the following:
In the adjoining figure, TP and TQ are tangents from T to the circle with centre o
and R is any point on the circle. If AB is a tangent to the circle at R, prove that :
TA + AR = TB + BR. [AI 2008]​

Answer 1

Answer:

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