﻿ All chords of the curve  which subtend a right angle at the origin always pass through the point : Kaysons Education

# All Chords Of The Curve  which Subtend A Right Angle At The Origin Always Pass Through The Point

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## Question

### Solution

Correct option is

(1, –2)

Let ax + by = 1 be a family of chords of the curve

subtending a right angle at the origin.

The combined equation of the straight lines joining the origin to the points of intersection of  and the chord ax + by =1 is

This represents a pair of perpendicular lines.

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