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AP EAMCET · Maths · Complex Number

\(\alpha\) is the real root and \(\beta, \gamma\) are the other roots of the equation \(x^3-a^3=0(a>0)\), then the number of common points of the curves given by \(|z-\beta|=\frac{\sqrt{3} a}{2}\) and \(|z-\gamma|=\frac{\sqrt{3}}{2} \alpha\) is

  1. A 0
  2. B 2
  3. C 3
  4. D 1
Verified Solution

Answer & Solution

Correct Answer

(B) 2

Step-by-step Solution

Detailed explanation

\(\because x^3-a^3=0 \Rightarrow(x-a)\left(x^2+a^2+a x\right)=0\) \(\Rightarrow x=a, \frac{-a \pm \sqrt{a^2-4 a^2}}{2}\)…