NCERT Maths Solutions Class 11th Chapter 8 Binomial Theorem

Binomial Theorem Class 11 Maths NCERT Solutions are extremely helpful while doing your homework. NCERT Solutions for Class 11 maths Chapter 8 Binomial Theorem All Exercises were prepared by Experienced manabadi.com Teachers.

Free download NCERT Solutions for Class 11 Maths Chapter 8 Binomial Theorem Ex 8.1, Ex 8.2, and Miscellaneous Exercise PDF in English Medium for CBSE Uttarakhand, Bihar, MP Board, Gujarat Board, BIE, Intermediate and students, who are using NCERT Books based on updated CBSE Syllabus for the session 2019-20

NCERT Solution for Class 11 Maths Chapter 8 Exercise 8.1

Ex 8.1 Class 11 Maths Question-1

Expand the expression (1 - 2x)⁵ Ans:

By using binomial theorem, the expression (1-2x) ⁵can be expanded as

Ex 8.1 Class 11 Maths Question-2

Expand the expression

Ans:

By using binomial theorem, the expressioncan be expanded as

Ex 8.1 Class 11 Maths Question-3

Expand the expression (2x - 3) ⁶

Ans:

By using binomial theorem, the expression (2x - 3) ⁶can be expanded as

NCERT Solution for Class 11 Maths Chapter 8 Exercise 8.2

Ex 8.2 Class 11 Maths Question-1

Find the coefficient of x⁵ in (x + 3)⁸

Ans:

Find the coefficient of x⁵ in (x + 3)⁸

It is known that (r + 1)^th term, (T _r+1), the binomial expansion of (a + b)ⁿ is given by T _r+1= ^aC_ra^n-rb^r

Asuming that x⁵ occurs in the (r + 1) ^thterm of the expansion (x + 3)⁸, we obtain T_r+1 =⁸C_r(x)^8-r3^r

Comparing the indices of x ⁵ and T_r+1we obtain r = 3

Ex 8.2 Class 11 Maths Question-2

NCERT Solutions for Class 11 Maths Chapter 8 Miscellaneous Solutions

Miscellaneous Exercise Class 11 Maths Questions-1

Find a, b and n in the expansion of (a + b)ⁿ if the first three terms of the expansion are 79, 7290, and 30375, respectively

Ans:

Miscellaneous Exercise Class 11 Maths Questions-2

Find the coefficient pf x⁵ in the product (1 + 2x)⁶(1 - x)⁷

Ans: