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JEE Mains · Maths · STD 11 - 10.1 circle and system of circle

જો આપેલ રેખા \(5x + 8y = 13\) અને \(4x - y = 3\) એ વર્તુળ \(x^2 + y^2 - 2\,(a^2 - 7a + 11)\) અને \(x - 2\, ( a^2 - 6a + 6)\, y + b^3 + 1 = 0\) માટે વ્યાસનું સમીકરણ હોય તો 

  1. A \(a = 5\) અને \(b \notin \left( { - 1,1} \right)\)
  2. B \(a = 1\) અને \(b \notin \left( { - 1,1} \right)\)
  3. C \(a = 2\) અને \(b \notin \left( { - \infty ,1} \right)\)
  4. D \(a = 5\) અને \(b \in \left( { - \infty ,1} \right)\)
Verified Solution

Answer & Solution

Correct Answer

(D) \(a = 5\) અને \(b \in \left( { - \infty ,1} \right)\)

Step-by-step Solution

Detailed explanation

Point of intersection of two given lines is \((1,1)\). Since each of the two given lines contains a diameter of the given circle, therefore the point of intersection of the two given lies is the centre of the given circle. Hence centre \(=(1,1)\)…
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