For the circle

MATHEMATICS · Single correct · CBSE · Mathematics · Circles · Circles

Problem

For the circle (x−1)2+(y+2)2=25(x-1)^2+(y+2)^2=25, a point P(k,1)P(k,1) is taken on the line y=1y=1. For which values of kk can two tangents be drawn from PP to the circle? (a) −3<k<5-3<k<5 (b) k≥5 or k≤−3k\ge 5 \text{ or } k\le -3 (c) k>5 or k<−3k>5 \text{ or } k<-3 (d) k>4 or k<−4k>4 \text{ or } k<-4

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