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If-a-1-a-2-a-3-a-4-are-the-coefficient-of-any-four-four-consecutive-terms-in-the-expansion-of-1-x-n-then-a-1-a-1-a-2-a-3-a-3-a-4-is-equal-to-




Question Number 18757 by 786786AM last updated on 29/Jul/17
If a_1 , a_2 , a_3 , a_4  are the coefficient of any  four four consecutive terms in the expansion  of (1+x)^n , then (a_1 /(a_1 +a_2 )) + (a_3 /(a_3 +a_4 )) is equal to
Ifa1,a2,a3,a4arethecoefficientofanyfourfourconsecutivetermsintheexpansionof(1+x)n,thena1a1+a2+a3a3+a4isequalto

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