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Manipal MET2012MathematicsBinomial Theorem

The least positive remainder when 123 125 127 is divided by 124 is

Options

  1. A4
  2. B120
  3. C121
  4. D130

Correct answer

C. 121

Step-by-step solution

aligned Since, 123 =-1( 124) 125= ( 124) 127 =3( 124) 123 125 127 =(-1)(1)(3) (124) =-3 (124) =121 (125) aligned

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