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TS EAMCET · Maths · Circle

If (2, a) does not lie outside the circles x2+y2=13 and x2+y2+x-2y=14, then a lies in

  1. A (-, -3)(4, )
  2. B [-3, 4]
  3. C (-, -1)(3, )
  4. D [-2, 3]
Verified Solution

Answer & Solution

Correct Answer

(D) [-2, 3]

Step-by-step Solution

Detailed explanation

∙ For 2,a to lie inside or on the circle x2+y2=13 22+a2=13≤0 ⇒a+3a-3≤0 ⇒a∈-3,3              .....i ∙ For 2,a to lie inside or on the circle x2+y2+x-2y=14…