Class 11
Maths :-NCERT Solutions - Binomial Theorem.
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Question 3:
Expand the expression (2x – 3)6
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Question 4:
Expand the expression
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Question 5:
Expand 
ANSWER:
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Question 6:
Using Binomial Theorem, evaluate (96)3
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Question 7:
Using Binomial Theorem, evaluate (102)5
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Question 8:
Using Binomial Theorem, evaluate (101)4
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Question 9:
Using Binomial Theorem, evaluate (99)5
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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
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Question 2:
Find the coefficient of a5b7 in (a – 2b)12
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Question 3:
Write the general term in the expansion of (x2 – y)6
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Question 4:
Write the general term in the expansion of (x2 – yx)12, x ≠ 0
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Question 7:
Find the middle terms in the expansions of 
ANSWER
Question 8:
Find the middle terms in the expansions of 
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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.
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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
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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]
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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 