Mathematics · 2017
JEE Main · 9 April 2017, Shift 1 · Q79
A line drawn through the point P(4, 7) cuts the circle x^2+y^2=9 at the points A and B. Then PA•PB is equal to:
A line drawn through the point P$\displaystyle (4, 7)$ cuts the circle $\displaystyle x^2+y^2=9$ at the points A and B. Then PA•PB is equal to :
Official answer
(2)
$\displaystyle 56$
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JEE Main 2017 Mathematics question, with the answer from NTA’s final answer key. Where our answers come from.