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Most Important Selected Qs for JEE AdvancedMathematicsCircle

Paragraph: Consider a circle S: x^2+y^2-6 x-4 y-3=0 with centre C and P be the point (-1,-1) . Also P A and P B are tangent drawn to the circle S . Question: Radius of the circle circumscribing the triangle P A B is:

Options

  1. A1
  2. B3 2
  3. C4 3
  4. D5 2

Correct answer

D. 5 2

Step-by-step solution

(i) Area of quadrilateral =r L=4 3=12 (ii) Circle circumscribing the triangle P A B is the circle described on C P as diameter radius = 5 2

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