BreneEimega2nbi BreneEimega2nbi
  • 11-11-2016
  • Mathematics
contestada

Which of the following would be the coefficient of the third term of a binomial to the seventh power?



A. 10
B. 15
C. 21

Respuesta :

nobillionaireNobley
nobillionaireNobley nobillionaireNobley
  • 18-11-2016
Coefitient of a binomial expansion is given by nCr
Here, n = 7, r = 3 - 1
7C2 = 21
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