Class 11
Maths :-NCERT Solutions - Binomial Theorem.
Page No 166:
Question 3:
Expand the expression (2x – 3)6
Page No 167:
Question 4:
Expand the expression
Page No 167:
Question 5:
Expand 
ANSWER:
Page No 167:
Question 6:
Using Binomial Theorem, evaluate (96)3
Page No 167:
Question 7:
Using Binomial Theorem, evaluate (102)5
Page No 167:
Question 8:
Using Binomial Theorem, evaluate (101)4
Page No 167:
Question 9:
Using Binomial Theorem, evaluate (99)5
Page No 167:
Question 13:
Show that 
is divisible by 64, whenever n is a positive intege
Page No 171:
Question 1:
Find the coefficient of x5 in (x + 3)8
Page No 171:
Question 2:
Find the coefficient of a5b7 in (a – 2b)12
Page No 171:
Question 3:
Write the general term in the expansion of (x2 – y)6
Page No 171:
Question 4:
Write the general term in the expansion of (x2 – yx)12, x ≠ 0
Page No 171:
Question 7:
Find the middle terms in the expansions of 
ANSWER
Question 8:
Find the middle terms in the expansions of 
Page No 171:
Question 10:
The coefficients of the (r – 1)th, rth and (r + 1)th terms in the expansion of
(x + 1)n are in the ratio 1:3:5. Find n and r.
Page No 175:
Question 1:
Find a, b and n in the expansion of (a + b)n if the first three terms of the expansion are 729, 7290 and 30375, respectivel
Page No 175:
Question 4:
If a and b are distinct integers, prove that a – b is a factor of an – bn, whenever n is a positive integer.
[Hint: write an = (a – b + b)n and expand]
Page No 175:
Question 8:
Find n, if the ratio of the fifth term from the beginning to the fifth term from the end in the expansion of 
