Find the indicated terms in the expansion of the given binomial.
The first three terms in the expansion of
(x+1/x)^40
first term
second term
third term
5 answers
x^40 + 40 x^38 + 780 x^36
https://socratic.org/questions/how-do-you-find-the-fourth-term-of-a-b-8
as an example
as an example
an expansion of ... (a + b)^k
for the nth term
... (k)C(n-1) a^(k-n+1) b^(n-1)
for the nth term
... (k)C(n-1) a^(k-n+1) b^(n-1)
Thanks
Scott How do you get 780x^36 for the 3rd term? Thx