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COMEDK2015MathematicsComplex Number

Amplitude of the complex number i ( 19 ) is

Options

  1. A19
  2. B- 19
  3. C2
  4. D2 - 19

Correct answer

C. 2

Step-by-step solution

Let z=i 19 or z=0+i 19 Let amplitude of z be , then = 19 0²+ ( 19 )² [ = b a²+b² ] or = 19 19 =1 = 2

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