Chapter 8 Binomial Theorem Ex 8.1 Solutions
Question - 1 : - Expand the expression (1– 2x)5
Answer - 1 : - By using Binomial Theorem, the expression (1– 2x)5 can be expanded as
Question - 2 : - Expand the expression 
Answer - 2 : -
By using Binomial Theorem, the expression can be expanded as
Question - 3 : - Expand the expression (2x – 3)6
Answer - 3 : - By using Binomial Theorem, the expression (2x – 3)6 can be expanded as
Question - 4 : - Expand the expression 
Answer - 4 : -
By using Binomial Theorem, the expression can be expanded as
Question - 5 : - Expand 
Answer - 5 : - By using Binomial Theorem, the expression can be expanded as
Question - 6 : - Using Binomial Theorem, evaluate (96)3
Answer - 6 : -
96 can be expressed as the sum or difference of two numbers whose powers are easier to calculate and then, binomial theorem can be applied.
It can be written that, 96 = 100 – 4
Question - 7 : - Using Binomial Theorem, evaluate (102)5
Answer - 7 : -
102 can be expressed as the sum or difference of two numbers whose powers are easier to calculate and then, Binomial Theorem can be applied.
It can be written that, 102 = 100 + 2
Question - 8 : - Using Binomial Theorem, evaluate (101)4
Answer - 8 : -
101 can be expressed as the sum or difference of two numbers whose powers are easier to calculate and then, Binomial Theorem can be applied.
It can be written that, 101 = 100 + 1
Question - 9 : - Using Binomial Theorem, evaluate (99)5
Answer - 9 : -
99 can be written as the sum or difference of two numbers whose powers are easier to calculate and then, Binomial Theorem can be applied.
It can be written that, 99 = 100 – 1
Question - 10 : - Using Binomial Theorem, indicate which number is larger (1.1)10000 or 1000.
Answer - 10 : -
By splitting 1.1 and then applying Binomial Theorem,the first few terms of (1.1)10000 canbe obtained as
