If two circles x^ 2 +y^ 2 =r^ 2 and x^ 2 +y^ 2 -10 x+16=0 intersect at two real points…

Mathematics · JEE Main · NTA ExamsCo-ordinate Geometry

If two circles \(x^{2}+y^{2}=r^{2} \text { and } x^{2}+y^{2}-10 x+16=0\) intersect at two real points, then
  1. \(1
  2. \(3
  3. \(7
  4. \(7<1<8\)

Answer

(A) 1<r<7

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