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  • The binomial expansion of  is given by
  • The general term  in the expansion of
  • The expansion of
  • The expansion of
  • The middle term in the expansion of  term if n is even and and  term if n is odd
  • The binomial coefficients of  are such that the binomial coefficient of 1st term = that of the (n+1)th term (last term), the binomial coefficient of the 2nd term = that of the nth term and so on
  • Sum of binomial coefficients in
  • Sum of alternate binomial coefficients in
  • The constant term in the expansion of  is the term without the variables
  •  will have the same coefficients & terms in its expansion as  with the alternate sings becoming negative (even terms are negative)

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