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NDA2010MathematicsComplex NumberActual

If x^2+y^2=1 , then what is 1+x+i y 1+x-i y equal to?

Options

  1. Ax-i y
  2. Bx+i y
  3. C2 x
  4. D-2 i y

Correct answer

A. x-i y

Step-by-step solution

The correct answer is option (A).

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