The chord of the contact of tangents from a point P to a circle passes – InterviewSolution

1.	The chord of the contact of tangents from a point P to a circle passes through Q (Q lies outside the circle). If a1 and a2 are the lengths of the tangents from P and Q to the circle respectively, then PQ is equal to
Answer» The chord of the contact of tangents from a point $P$ to a circle passes through $Q$ ( $Q$ lies outside the circle). If $a_{1}$ and $a_{2}$ are the lengths of the tangents from $P$ and $Q$ to the circle respectively, then $P Q$ is equal to

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