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JEE Mains · Maths · STD 11 - 4.1 complex nubers

माना \(Z _{1}\) तथा \(Z _{2}\) दो सम्मिश्र संख्यायें इस प्रकार हैं कि \(\arg \left( z _{1}- z _{2}\right)=\frac{\pi}{4}\) है तथा \(z _{1}, z _{2}\) समीकरण \(| z -3|\) \(=\operatorname{Re}( z )\) को सन्तुष्ट करते हैं। तो \(z _{1}+ z _{2}\) का काल्पनिक भाग है

  1. A \(1\)
  2. B \(2\)
  3. C \(6\)
  4. D \(5\)
Verified Solution

Answer & Solution

Correct Answer

(C) \(6\)

Step-by-step Solution

Detailed explanation

\(|z-3|=\operatorname{Re}(z)\) \(\text { let } Z=x=\text { iy }\) \(\Rightarrow(x-3)^{2}+y^{2}=x^{2}\) \(\Rightarrow x^{2}+9-6 x+y^{2}=x^{2}\) \(\Rightarrow y^{2}=6 x-9\) \(\Rightarrow y^{2}=6\left(x-\frac{3}{2}\right)\) \(\Rightarrow \mathrm{z}_{1}\) and \(\mathrm{z}_{2}\) lie…
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