NCERT Solutions for Class 11 Maths Chapter 7: Permutations and Combinations

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NCERT Solutions for Class 11 Maths Chapter 7 Permutations and Combinations are provided in the article. Permutation and Combination are used to determine the number of ways in which a number can be arranged and selected without listing them out. NCERT Solutions Class 11 Maths Chapter 7 Permutations and Combinations cover following key concepts in detail:

Fundamental Principle of Counting
Permutations
Combinations

Download: NCERT Solutions for Class 11 Mathematics Chapter 7 pdf

Class 11 Maths NCERT Solutions Chapter 7 Permutations and Combinations

Class 11 Maths NCERT Solutions Chapter 7 Permutations and Combinations are provided below:

Also check: Permutations and Combinations

Important Topics for Class 11 Maths NCERT Solutions Chapter 7 Permutations & Combinations

Important Topics for Class 11 Maths NCERT Solutions Chapter 7 Permutations & Combinations are as follows:

Fundamental Principle of Counting

Fundamental Principle of Counting is a rule used to count total number of possible outcomes in a situation. This rule states that if there are n ways of doing something, and m ways of doing another thing after that, then there are n × m ways to perform both of these actions.

Example: A restaurant has 5 appetizers, 7 beverages, 9 entrees, and 5 desserts on the menu. If you have a beverage and a dessert, there are 7*5 = 35 different meals consisting of a beverage and dessert.

Permutations

Permutation is an arrangement of objects in a definite order. Members or elements of sets are arranged here in a sequence or linear order.

Example: Permutation of Set A = {1,6} is 2, such as {1,6}, {6,1}

Combinations

Combination is a mathematical technique that determines number of possible arrangements in a collection of items where order of the selection does not matter. In combinations, you can select the items in any order.

Combination Formula

NCERT Solutions For Class 11 Maths Chapter 7 Exercises:

The detailed solutions for all the NCERT Solutions for Chapter 7 Permutations and Combinations under different exercises are as follows:

Also check:

Chapter Related Topics
Permutations and Combinations Formulas	Factorial Formula	Stirling Formula
Combinatorics	Involute	Difference between Permutation and Combination

Also check:

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Maths Important Formulas	Maths MCQs	Comparison Articles in Maths
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CBSE CLASS XII Related Questions

1.
For the following Linear Programming Problem, shade the feasible region on the graph and find the coordinates of its corner points :
Minimize \(Z = 18x + 10y\)
subject to constraints
\[ \begin{aligned} 4x + y &\ge 20 \\ 2x + 3y &\ge 30 \\ x, y &\ge 0. \end{aligned} \]
View Solution
2.
If \(P(A) = 0.3\), \(P(B) = 0.7\) and \(P(B/A) = 0.5\), then \(P(A \cup B)\) is :
- \(0.35\)
- \(0.85\)
- \(0.5\)
- \(0.21\)
View Solution
3.
Find the sum of maximum and minimum values of \(f(x) = \sin x\,(1 + \cos x)\) in the interval \([0, \pi]\).
View Solution
4.
If \(y = \sqrt{\log \left\{ \sin \left( \dfrac{x^2}{3} + 1 \right) \right\}}\), then show that
\[ \frac{dy}{dx} = \frac{x \cot \left( \dfrac{x^2}{3} + 1 \right)}{3y}. \]
View Solution
5.
Evaluate :
\[ I = \int_{-\pi}^{\pi} \frac{2x\,(1+\sin x)}{1+\cos^2 x}\,dx \]
View Solution
6.
For events A and B, if \(P(B)=\frac{3}{5}\), \(P(A/B)=\frac{1}{2}\) and \(P(A\cup B)=\frac{4}{5}\), then \(P(A)\) is :
- \(\frac{1}{2}\)
- \(\frac{3}{5}\)
- \(\frac{1}{5}\)
- \(\frac{3}{10}\)
View Solution

View All

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Important Questions For Class 11 Maths Chapter 7: Permutations and Combinations

NCERT Solutions for Class 11 Maths Chapter 7 Exercise 7.1

NCERT Solutions for Class 11 Maths Chapter 7 Exercise 7.2

NCERT Solutions for Class 11 Maths Chapter 7 Exercise 7.3

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NCERT Solutions for Class 11 Maths Chapter 7: Permutations and Combinations

Class 11 Maths NCERT Solutions Chapter 7 Permutations and Combinations

Important Topics for Class 11 Maths NCERT Solutions Chapter 7 Permutations & Combinations

NCERT Solutions For Class 11 Maths Chapter 7 Exercises:

CBSE CLASS XII Related Questions

1.
For the following Linear Programming Problem, shade the feasible region on the graph and find the coordinates of its corner points :
Minimize \(Z = 18x + 10y\)
subject to constraints
\[ \begin{aligned} 4x + y &\ge 20 \\ 2x + 3y &\ge 30 \\ x, y &\ge 0. \end{aligned} \]

2.
If \(P(A) = 0.3\), \(P(B) = 0.7\) and \(P(B/A) = 0.5\), then \(P(A \cup B)\) is :

3.
Find the sum of maximum and minimum values of \(f(x) = \sin x\,(1 + \cos x)\) in the interval \([0, \pi]\).

4.
If \(y = \sqrt{\log \left\{ \sin \left( \dfrac{x^2}{3} + 1 \right) \right\}}\), then show that
\[ \frac{dy}{dx} = \frac{x \cot \left( \dfrac{x^2}{3} + 1 \right)}{3y}. \]

5.
Evaluate :
\[ I = \int_{-\pi}^{\pi} \frac{2x\,(1+\sin x)}{1+\cos^2 x}\,dx \]

6.
For events A and B, if \(P(B)=\frac{3}{5}\), \(P(A/B)=\frac{1}{2}\) and \(P(A\cup B)=\frac{4}{5}\), then \(P(A)\) is :

Similar Mathematics Concepts

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NCERT Solutions for Class 11 Maths Chapter 7: Permutations and Combinations

Class 11 Maths NCERT Solutions Chapter 7 Permutations and Combinations

Important Topics for Class 11 Maths NCERT Solutions Chapter 7 Permutations & Combinations

NCERT Solutions For Class 11 Maths Chapter 7 Exercises:

CBSE CLASS XII Related Questions

1.For the following Linear Programming Problem, shade the feasible region on the graph and find the coordinates of its corner points :Minimize \(Z = 18x + 10y\)subject to constraints\[ \begin{aligned} 4x + y &\ge 20 \\ 2x + 3y &\ge 30 \\ x, y &\ge 0. \end{aligned} \]

2.If \(P(A) = 0.3\), \(P(B) = 0.7\) and \(P(B/A) = 0.5\), then \(P(A \cup B)\) is :

3.Find the sum of maximum and minimum values of \(f(x) = \sin x\,(1 + \cos x)\) in the interval \([0, \pi]\).

4.If \(y = \sqrt{\log \left\{ \sin \left( \dfrac{x^2}{3} + 1 \right) \right\}}\), then show that\[ \frac{dy}{dx} = \frac{x \cot \left( \dfrac{x^2}{3} + 1 \right)}{3y}. \]

5.Evaluate :\[ I = \int_{-\pi}^{\pi} \frac{2x\,(1+\sin x)}{1+\cos^2 x}\,dx \]

6.For events A and B, if \(P(B)=\frac{3}{5}\), \(P(A/B)=\frac{1}{2}\) and \(P(A\cup B)=\frac{4}{5}\), then \(P(A)\) is :

Similar Mathematics Concepts

Comments

SUBSCRIBE TO OUR NEWS LETTER

1.
For the following Linear Programming Problem, shade the feasible region on the graph and find the coordinates of its corner points :
Minimize \(Z = 18x + 10y\)
subject to constraints
\[ \begin{aligned} 4x + y &\ge 20 \\ 2x + 3y &\ge 30 \\ x, y &\ge 0. \end{aligned} \]

2.
If \(P(A) = 0.3\), \(P(B) = 0.7\) and \(P(B/A) = 0.5\), then \(P(A \cup B)\) is :

3.
Find the sum of maximum and minimum values of \(f(x) = \sin x\,(1 + \cos x)\) in the interval \([0, \pi]\).

4.
If \(y = \sqrt{\log \left\{ \sin \left( \dfrac{x^2}{3} + 1 \right) \right\}}\), then show that
\[ \frac{dy}{dx} = \frac{x \cot \left( \dfrac{x^2}{3} + 1 \right)}{3y}. \]

5.
Evaluate :
\[ I = \int_{-\pi}^{\pi} \frac{2x\,(1+\sin x)}{1+\cos^2 x}\,dx \]

6.
For events A and B, if \(P(B)=\frac{3}{5}\), \(P(A/B)=\frac{1}{2}\) and \(P(A\cup B)=\frac{4}{5}\), then \(P(A)\) is :