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WBJEE · Maths · Complex Number

If \(\left(\frac{3}{2}+i \frac{\sqrt{3}}{2}\right)^{50}=3^{25}(x+i y)\) where \(x\) and \(y\)
are real, then the ordered pair \((x, y)\) is

  1. A (-3,0)
  2. B (0,3)
  3. C (0,-3)
  4. D \(\left(\frac{1}{2}, \frac{\sqrt{3}}{2}\right)\)
Verified Solution

Answer & Solution

Correct Answer

(D) \(\left(\frac{1}{2}, \frac{\sqrt{3}}{2}\right)\)

Step-by-step Solution

Detailed explanation

Let \(z=\frac{3}{2}+i \frac{\sqrt{3}}{2}\) \(\therefore\) \(r=\sqrt{\frac{9}{4}+\frac{3}{4}}=\sqrt{\frac{12}{4}}=\sqrt{3}\)…