If in the expansion of \[{{(1+x)}^{n}}\], a, b, c are three consecutive coefficients, then n=

\[\frac{ac+ab+bc}{{{b}^{2}}+ac}\]

\[\frac{2ac+ab+bc}{{{b}^{2}}-ac}\]

If in the expansion of \[{{(1+x)}^{n}}\], a, b, c are three consecutiv

1.	If in the expansion of \[{{(1+x)}^{n}}\], a, b, c are three consecutive coefficients, then n=
A.	\[\frac{ac+ab+bc}{{{b}^{2}}+ac}\]
B.	\[\frac{2ac+ab+bc}{{{b}^{2}}-ac}\]
C.	\[\frac{ab+ac}{{{b}^{2}}-ac}\]
D.	None of these
Answer» C. \[\frac{ab+ac}{{{b}^{2}}-ac}\]

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If in the expansion of \[{{(1+x)}^{n}}\], a, b, c are three consecutive coefficients, then n=

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