1.

If n is even positive integer, then the condition that the greatest term in the expansion of \[{{(1+x)}^{n}}\]may have the greatest coefficient also, is

A. \[\frac{n}{n+2}<x<\frac{n+2}{n}\]
B. \[\frac{n+1}{n}<x<\frac{n}{n+1}\]
C. \[\frac{n}{n+4}<x<\frac{n+4}{4}\]
D. None of these
Answer» B. \[\frac{n+1}{n}<x<\frac{n}{n+1}\]


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