Maths-
General
Easy

Question

The coefficient of  x to the power of n in fraction numerator left parenthesis 1 plus x right parenthesis left parenthesis 1 plus 2 x right parenthesis left parenthesis 1 plus 3 x right parenthesis over denominator left parenthesis 1 minus x right parenthesis left parenthesis 1 minus 2 x right parenthesis left parenthesis 1 minus 3 x right parenthesis end fraction is

  1. 12 minus 30.2 to the power of n plus 20.3 to the power of n
  2. 12 plus 30.2 to the power of n plus 20.3 to the power of n
  3. 12 plus 30.2 to the power of n minus 20.3 to the power of n
  4. 12 minus 30.2 to the power of n minus 20.3 to the power of n

The correct answer is: 12 minus 30.2 to the power of n plus 20.3 to the power of n

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