Asked by John
expand as a binomial series
(r-p)^9
(r-p)^9
Answers
Answered by
Steve
just look at row 10 of Pascal's Triangle, and use r and -p.
That is, (r-p)^9 = r^9 + 9r^8(-p) + 36r^7(-p)^2 + ...
= r^9 - 9r^8p + 36r^7p^2 - ...
That is, (r-p)^9 = r^9 + 9r^8(-p) + 36r^7(-p)^2 + ...
= r^9 - 9r^8p + 36r^7p^2 - ...
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