Let $n$ be a positive integer. If the coefficients of $2^{ ext {nd }}, 3^{ ext {rd }}$ and $4^{ ext {th }}$ terms in the expansion of $(1+x)^n$ are in A.P, then the value of $n=$

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Let $n$ be a positive integer. If the coefficients of $2^{	ext {nd }}, 3^{	ext {rd }}$ and $4^{	ext {th }}$ terms in the expansion of $(1+x)^n$ are in A.P, then the value of $n=$

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Let $n$ be a positive integer. If the coefficients of $2^{\text {nd }}, 3^{\text {rd }}$ and $4^{\text {th…

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