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Assertion (A) : thesumand product of the slopes of the tangents to the ellipse (x^2)/(9)+(y^2)/(4)=1 drawn from the points (6,-2) are -8/9,1.Reason(R): if m_(1),m_(2)are the slopes of the tangents through(x_(1),y_(1))of the ellipse, then m_(1)+m_(2)=(2x_(1).y_(1))/(x_(1)^(2)-a^(2))m_(1).m_(2)=(y_(1)^(2)-b^(2))/(x_(1)^(2)-a^(2)) |
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Answer» A TRUE, R true & R is CORRECT exp. of A |
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