Welcome to cbsenotes.com! To post messages or access any member only section, you will need an account. Create your free account now.
CBSE Notes 2011-2012 » XI-Maths

# Binomial Theorem

## In the binomial expansion of (x + 1)n, the coefficients of the fifth, sixth and seventh terms are in...

In the binomial expansion of (x + 1)n, the coefficients of the fifth, sixth and seventh terms are in arithmetic progression. Find all the values of n for which this can happen,

## Find a if the coefficients of x2 and x3 in the expansion of (3 + ax)9 are equal.

Find a if the coefficients of x2 and x3 in the expansion of (3 + ax)9 are equal.

## For what value of m the coefficients of the (2m + l)th and (Am + 5)th terms, in the expansion of (1 ...

For what value of m the coefficients of the (2m + l)th and (Am + 5)th terms, in the expansion of (1 +x)10, are equal ?

## Let n be a positive integer if the coefficients of 2nd, 3rd, 4th terms in the expansion of (1+x)n ar...

Let n be a positive integer if the coefficients of 2nd, 3rd, 4th terms in the expansion of (1+x)n are in A. P., find the value of n.