NCERT Maths Solutions Class 11th Chapter 8 Binomial Theorem

NCERT Solutions Class 11 Maths Chapter 8 - Binomial Theorem PDF

Download a free PDF of NCERT Solutions for Class 11 Maths Chapter 8 - Binomial Theorem, featuring all questions from the NCERT textbooks, prepared by expert Mathematics teachers in accordance with CBSE NCERT guidelines. This PDF from www.manabadi.co.in is designed to help you score higher in both board and competitive exams.

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

NCERT Maths Solutions Class 11th Chapter 8 Binomial Theorem

Ex 8.1 Class 11 Maths Question-2

Expand the expressionNCERT Maths Solutions Class 11th Chapter 8 Binomial Theorem

Ans:

By using binomial theorem, the expressionNCERT Maths Solutions Class 11th Chapter 8 Binomial Theoremcan be expanded as

NCERT Maths Solutions Class 11th Chapter 8 Binomial Theorem

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 Maths Solutions Class 11th Chapter 8 Binomial Theorem

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= aCran-rbr

Asuming that x5 occurs in the (r + 1) thterm of the expansion (x + 3)8, we obtain Tr+1 =8Cr(x)8-r3r

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

NCERT Maths Solutions Class 11th Chapter 8 Binomial Theorem

Ex 8.2 Class 11 Maths Question-2

NCERT Maths Solutions Class 11th Chapter 8 Binomial Theorem

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:
NCERT Maths Solutions Class 11th Chapter 8 Binomial Theorem

Miscellaneous Exercise Class 11 Maths Questions-2

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

Ans:
NCERT Maths Solutions Class 11th Chapter 8 Binomial Theorem

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  • Sagar singh
  • 2022-March-22 18:00:44
I want glossary PDF
  • Anuradha Rawat
  • 2021-September-18 08:27:43
Very much composed answers
  • Mayank
  • 2021-March-26 11:24:00
Ok
  • Ramu
  • 2020-May-05 15:49:15
NCERT Solutions For Class 11