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If a subscript n equals sum from r equals 0 to n of   1 over n subscript C subscript r end subscript text  then  end text sum from r equals 0 to n of   fraction numerator r over denominator blank to the power of n C subscript r end fractionequal to

Maths-General

  1. a subscript n plus 1 end subscript
  2. n times a subscript n
  3. blank to the power of left parenthesis n minus 1 right parenthesis end exponent a subscript 0
  4. 1 half n times a subscript n

    Answer:The correct answer is: 1 half n times a subscript n

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