What is the coefficient of the a^5 term in the expansion of (a+b)^10? ( ) A. 252 B. 126 C. 210 D. 462 E. 120
Added by Michael M.
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.. + C(10,10)a^0b^10 where C(n,k) is the binomial coefficient, equal to n!/(k!(n-k)!). Show more…
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