Maths-
General
Easy

Question

The complex numbers sin x + i cos 2x and cos x – i sin 2x are conjugate to each other for -

  1. x = n pi    
  2. x = open parentheses n plus fraction numerator 1 over denominator 2 end fraction close parenthesespi    
  3. x = 0    
  4. no value of x    

The correct answer is: no value of x

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