﻿ The lengths of the tangents from two points A and B to a circle are l and l’ respectively. If the points are conjugate with respect to the circle, then (AB)2 is equal to : Kaysons Education

# The Lengths Of The Tangents From Two Points A and B to A Circle Are l and l’ respectively. If The Points Are Conjugate With Respect To The Circle, Then (AB)2 Is Equal To

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## Question

### Solution

Correct option is

Equation of the circle be x2 + y2 = a2A(x1y1), B(x2y2­)

Since they are conjugate x1x2 + y1y2 = a2

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