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

\(k\) के पूर्णांक मानों की संख्या जिसके लिए रेखा \(3 x+4 y=k\) दो अलग-अलग बिंदुओं पर वृत्त \(x^{2}+y^{2}-2 x-4 y+4=0\) को काटती है, यह ............ है।

  1. A \(9\)
  2. B \(10\)
  3. C \(8\)
  4. D \(11\)
Verified Solution

Answer & Solution

Correct Answer

(A) \(9\)

Step-by-step Solution

Detailed explanation

Circle \(x^{2}+y^{2}-2 x-4 y+4=0\) \(\Rightarrow(x-1)^{2}+(y-2)^{2}=1\) Centre : (1,2) radius \(=1\) line \(3 x+4 y-k=0\) intersects the circle at two distinct points. \(\Rightarrow\) distance of centre from the line \(<\) radius…
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