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JEE Mains · Maths · STD 11 - 4.1 complex nubers

\(r\) का वह अधिकतम मान जिसके लिए समुच्चय \(\{\omega \in C /|\omega-4-i| \leq r \}\) द्वारा निर्धारित क्षेत्र, समुच्चय \(\{z \in C /|z-1| \leq|z+i|\}\) द्वारा निध्धरित क्षेत्र में सम्मिलित है

  1. A \(\frac{5}{2}\sqrt 2 \)
  2. B \(2\sqrt 2\)
  3. C \(\frac{3}{2}\sqrt 2 \)
  4. D \(\sqrt {17}\)
Verified Solution

Answer & Solution

Correct Answer

(A) \(\frac{5}{2}\sqrt 2 \)

Step-by-step Solution

Detailed explanation

Radius \(CP\,=\,\frac {4+1}{\sqrt 2}\) \(=\,\frac {5}{\sqrt 2}\) \(=\,\frac {5}{2}\sqrt 2\)
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