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JEE Mains · Maths · STD 11 - 4.1 complex nubers

ધારોકે કોઈ વાસ્તવિક સંખ્યાઓ \(\alpha\) અને \(\beta\) માટે \(a=\alpha-i \beta\) છ. જો સમીકરણ સંહતિ \(4 i x+(1+i) y=0\) અને \(8\left(\cos \frac{2 \pi}{3}+i \sin \frac{2 \pi}{3}\right) x+\bar{a} y=0\) ને એક કરતાં વધુ ઉકેલો હોય, તો \(\frac{\alpha}{\beta}=\dots\dots\dots\dots\)

  1. A \(-2+\sqrt{3}\)
  2. B \(2-\sqrt{3}\)
  3. C \(2+\sqrt{3}\)
  4. D \(-2-\sqrt{3}\)
Verified Solution

Answer & Solution

Correct Answer

(B) \(2-\sqrt{3}\)

Step-by-step Solution

Detailed explanation

\(a =\alpha- i \beta ; \alpha \in R ; \beta \in R\) \(4 ix +(1+ i ) y =0\) and \(8\left(\cos \frac{2 \pi}{3}+ i \sin \frac{2 \pi}{3}\right) x +\overline{ a } y =0\) \(\left|\begin{array}{cc}4 i \quad 1+ i \\ 8 e ^{ i 2 \pi / 3} \quad \overline{ a }\end{array}\right|=0\)…
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