Relations and Functions - Exercise 1.2 Concept Overview | Class 12 Maths Chapter 1 | CBSE/IIT-JEE

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✅ In this video,

✔️ Class: 12th (2022-23)
✔️ Subject: Maths (NCERT)
✔️ Chapter: Relations and Functions (Chapter 1)
✔️ Topic Name: Relations and Functions - Exercise 1.2 Concept Overview
✔️ Topics Covered In This Video (By Shivani Mam): Concept Overview of Exercise 1.2 Relations and Functions Class 12 Maths Chapter 1 is discussed in the video.
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00:00 Introduction: Relations and Functions - Exercise 1.2
00:44 Overview if Relations and Functions
11:37 Identify Which of them is a Function
23:36 Points to Remember
32:21 How to Identity Whether a Relation is a Function ?
40:13 Type of Function
47:42 How to Prove a Function to be one - one ?
58:19 Example of Relations and Functions
01:07:49 Many one Function
01:09:44 Onto Function / Surjection
01:22:40 Example of Relations and Functions
01:35:13 Into Function
01:36:36 Bijection / One - One Into Function
1:54:03 Website Overview
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[piyushprox]

At 27:53
Relation A to B
Domain- element a belongs to Set A or X-Coordinate
Range- element b belongs to Set B or Y-Coordinate
Co Domain- Set B

[JEENotes-uc]

Mam AAP bohat achha padhati ho really I'm your big fan mam 😊 aise me JEE me maths ka score bohat hi achha krunga because aap kisi bhi chapter ko bohta achhe se samjhati h 🫶

[Atleetrike]

Let R = { (a, b), (c, d)
First co-ordinate ( a, c ) between the given ordered pairs of relation called do main and second co ordinates of its ( b, d) called co domain and we always take range of relation by its last co ordinates (c, d) in the given ordered cartisian product of set in relation.

[nikhilesharun]

1:37:20
One-one (injection)
Onto (surjection)

[AyushKumar-frd]

Domain of relation - first coordinate of. Ordered pair
Range of a relation - second coordinate of ordered pair
Co-Domain of a relation - R: A-B. Then Set B is the co -domain

[piyushprox]

At 1:37:08
One-One function is also known as Injection
And
Onto Function is also known as Surjection

[Devshri_Damahe]

27:17
let any set A and set B
then,
relation => aRb then the elements of set A --- domain ; all the elements of set B --- codomain and the elements of set B related to a --- range

[vivek_gamer]

Domain = first value of any relation is called domain.
Co-domain = whole values of set B of any binary relation is called co - domain .

[saimainsights]

Thank you so much ma'am for your amazing explaination 🤩😍

[KunalBhatt-ojyp]

Thanks ma'am ☺️ for good explanation

[allmuvments]

One one function's 2nd name injection function and onto function's 2nd name surjection function.

[pratyushpratima]

Thank u so much mam for this video's..
But mam I have a doubt related to my class 12..
How can I manage my time to complete the whole syllabus by my own with the help of magnet brain videos...until November..

[Pwstories]

1:37:06 one one ' injection or injective function, onto, surjection or surjective

[rithikalakshmi]

One- one function= injection
Onto function= subjection
One-one and onto function= bijection

[pratyushpratima]

One - one function is also called injection function..
Onto function is also called surjection...

[Princess_]

Thank you so much Mam❤
I understand properly and concept hua crystal clear❤
You are the best maths teacher❤

[KLEGACY]

One-one function - injection
Onto function - surjection
One-one onto function - bijection

[seemagupta]

1:37:08 one one is also called injective function
On to function is also called subjective . functions

[sukanyaardhendu]

27:53
relation P TO Q
the first coordinate of all elements in relation is called domain
the second coordinate of all elements in relation is called range
the set Q is called codomain

[AdityaKumar-hmq]

Domain=collection of first element of order pair
Co_domain =collection of all second element of order pair
Range=set [B]