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CBSE Notes 2011-2012 » XI-Maths

Binomial Theorem

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

Short answer question

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.

In the expansion of (x +y)n, the coefficients of 4th and 13th terms are equal. Find n.

Short answer question

In the expansion of (x +y)n, the coefficients of 4th and 13th terms are equal. Find n.

The first three terms in the expansion of (x +y)n are 1,56 and 1372 respectively. Find the values of...

Short answer question

The first three terms in the expansion of (x +y)n are 1,56 and 1372 respectively. Find the values of x and y.

The coefficients of three consecutive terms in the expansion of (1 + x)n are in the ratio of 1 : 7 :...

Short answer question

The coefficients of three consecutive terms in the expansion of (1 + x)n are in the ratio of 1 : 7 : 42, find n and r.

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