Questions
The interval in which X must lie, so that the greatest term in the expansion of (1 + x)2n has the greatest coefficient, is
a
n−1n,nn−1
b
nn+1,n+1n
c
nn+2,n+2n
d
None of these
detailed solution
Correct option is B
Here, the greatest coefficient is 2nCn.∴ 2nCnxn>2nCn+1xn−1⇒x>nn+1 and 2nCnxn>2nCn−1xn+1⇒xTalk to our academic expert!
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lf a, b and c are the greatest values of respectively, the
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