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Question
In the circle given below which point(s) has/have a chord of contact.
In the circle given below which point(s) has/have a chord of contact.
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Solution
The correct option is A P only
Chord of contact exists only when the point is outside the circle. This is because by definition, chord of contact is the chord connecting the points of contact of the 2 tangents drawn from that point.For drawing those tangents the point needs to be outside the circle.
P only
Chord of contact exists only when the point is outside the circle. This is because by definition, chord of contact is the chord connecting the points of contact of the 2 tangents drawn from that point.For drawing those tangents the point needs to be outside the circle.
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