cleThe chords of contact of the pair of tangents drawn from each point – InterviewSolution

1.

cleThe chords of contact of the pair of tangents drawn from each point on the line 2x+ y 4 to the circlex2+y2 1 pass through the pointw.2) (o 12.4)B)|ă,2 4

Answer»

Equation of chord of contact:hx+ky=1

(h, k) lie on the line, we have2h+k=4hx+(4-2h)y=4

=>(1/2, 1/4)

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