If the coefficient of rth and (r + 1) ^ (th) terms in the expansion of (1 + x) ^ 20 are in the ratio of 1: 6, then find the value of r.
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If the coefficient of rth and (r + 1) ^ (th) terms in the expansion of (1 + x) ^ 20 are in the ratio of 1: 6, then find the value of r.
I wasn't able to parse your question, but the HE.NET team is hard at work making me smarter.