Find the indicated term in each expansion if the terms of the expansion are arranged in decreasing powers of the first term in the binomial. (a+b)^12; fifth term.
Added by Michael S.
Step 1
We can use the binomial theorem to do this: (a+b)^12 = C(12,0)a^12 + C(12,1)a^11b + C(12,2)a^10b^2 + ... + C(12,11)ab^11 + C(12,12)b^12 where C(n,k) represents the binomial coefficient "n choose k", which is equal to n!/(k!(n-k)!). Show more…
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