Posted by Anonymous on .
there are 15 terms in the expansion of the binomial (a+b)^n. determine the value of n.
please explain to me how to come about this!
thanks!

MATH!!!!! 
Reiny,
(a+b)^1 has 2 terms
(a+b)^2 has 3 terms
....
(a+b)^15 has  terms.