If any three successive coefficients in the expansion of $\displaystyle (1+x)^n$ are 36, 84 and 126. find n I dont know how to begin this problem should i do a series of what ???
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Originally Posted by TomJerry If any three successive coefficients in the expansion of $\displaystyle (1+x)^n$ are 36, 84 and 126. find n I dont know how to begin this problem should i do a series of what ??? Draw Pascal's Triangle and see which row those three numbers appear in.
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