NCERT solution Class 11 relations and functions

NCERT Solutions

Class 11 Maths

Relations and Functions

NCERT Questions

Ex.2.1 Q,1
Ex.2.1 Q.2
Ex.2.1 Q.3
Ex.2.1 Q.4
Ex.2.1 Q.5
Ex.2.1 Q.6
Ex.2.1 Q.7
Ex.2.1 Q.8
Ex.2.1 Q.9
Ex.2.1 Q.10
Ex.2.2 Q.1
Ex.2.2 Q.2
Ex.2.2 Q.3
Ex.2.2 Q.4
Ex.2.2 Q.5
Ex.2.2 Q.6
Ex.2.2 Q.7
Ex.2.2 Q.8
Ex.2.2 Q.9
Ex.2.3 Q.1
Ex.2.3 Q.2
Ex.2.3 Q.3
Ex.2.3 Q.4
Ex.2.3 Q.5
Ex.Misc.Q.1
Ex.Misc.Q.2
Ex.Misc.Q.3
Ex.Misc.Q.4
Ex.Misc.Q.5
Ex.Misc.Q.6
Ex.Misc.Q.7
Ex.Misc.Q.8
Ex.Misc.Q.9
Ex.Misc.Q.10
Ex.Misc.Q.11
Ex.Misc.Q.12

Ex.2.1 Q.8

Let A = {1, 2} and B = {3, 4}. Write A × B. How many subsets will A × B have? List them.

A = {1, 2} and B = {3, 4}

So, A × B = {(1, 3), (1, 4), (2, 3), (2, 4)}

=> n (A × B) = 4

We know that if C is a set with n(C) = m, then n[P(C)] = 2^m.

Therefore, the set A × B has 2⁴ = 16 subsets. These are

ф, {(1, 3)}, {(1, 4)}, {(2, 3)}, {(2, 4)}, {(1, 3), (1, 4)}, {(1, 3), (2, 3)}, {(1, 3), (2, 4)}, {(1, 4), (2, 3)},

{(1, 4), (2, 4)}, {(2, 3), (2, 4)}, {(1, 3), (1, 4), (2, 3)}, {(1, 3), (1, 4), (2, 4)}, {(1, 3), (2, 3), (2, 4)},

{(1, 4), (2, 3), (2, 4)}, {(1, 3), (1, 4), (2, 3), (2, 4)}

Video solution:

Relations and Functions Class 11 Maths NCERT Chapter 2 NCERT Solutions

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NCERT solutions of Relations and Functions Class 11 Maths - all questions of all exercises are solved. Q. No. 1, 2, 3, and so on. Complete explanation and detailed solution makes them the best videos for Class 11 Maths Relations and Functions NCERT solutions.