Number System Class 9 Maths Chapter 1 Concepts, Formulas | CBSE Class 9 Exams | BYJU'S- Class 9 & 10

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In today's session, we will be studying Number System Class 9 Chapter 1 Concepts, Formulas CBSE Class 9 Maths Chapter 1. You are watching this video on @BYJU'S - Class 9 & 10

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00:00 Number System Concepts Part-1
2:04 Flow of the Session
2:43 Subscribe Byju’s Channels
3:16 Family of Numbers
4:50 Which of the following is an integer but not a whole number?
6:29 Fractions
7:29 Rational Numbers
11:13 Equivalent Rational Numbers
12:03 Which of the following is the equivalent rational number of 16/28?
16:37 Is -5/-7 a positive or a negative rational number?
18:07 Irrational Numbers
21:11 Which of the following is an irrational number between 5 to 10?
23:36 Decimal Expansion
25:39 Classify the following decimal expansions as either terminating or recurring
28:04 Decimal Expansion of Rational numbers
30:01 Decimal Expansion of Irrational numbers
30:42 Which type of decimal expansion the following number has?
32:49 Summary
33:21 Earth Day Campaign
34:07 Homework Question
34:26 Upcoming Session

#BYJUS #BYJUSClass9 #BYJUSClass9Maths #NUmberSystem #NumberSystemQuestions #NumberSystemClass9 #NumberSystemConcept #CBSEClass9 #CBSEClass9Maths #Class9Maths

[BYJUSClass]

✍ Register yourself for ANTHE here:
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[mrgeneral]

00:48 Introduction to Number System

05:40 Understanding Rational Numbers

09:59 Understanding equivalent rational numbers

14:16 Learn about rational and irrational numbers

18:29 Pi is an irrational number

22:34 Learn about decimal expansions.

26:45 Decimal expansion of rational and irrational numbers

30:58 Identifying Irrational Numbers

[mahaknigam]

Ma'am in the rational no part.
There is a mistake.
-1/3 is a rational no but not a fraction.
In video it's mentioned -1/3 is a fraction

[samiya_f]

Is byjus really gonna help me in my studies..I'm very bad at it I have a hard time understanding even the basic concepts in maths...my mom asked if I wanted to join byjus classes.. so I'm not sure if it will help pls let me know...thanks

[papinanisrikanthpapinanisr]

hello Iam Mahitha the homework question answer is √12

[anamikaangel]

Ma'am you teaches so well 👍🏻👍🏻that I understand really really well you are so elegant at teaching and just wow!! Oo god!!!

[anchal]

Homework -
Answer is option B because root 12 is not perfect sq.

[sanchitasenkauri]

Hello, I'm Aharshi! The answer to the homework question is √12 because it is not a square number and the value is never ending!

[soultreegaming]

thanks a lot it help me clarify my dout on classification between rational and irrational

[kachigogada]

Pie is a rational number but 22/7 is a irrational number because that's not the exact value of pie

[arnavraj]

hello I am wageesha and 4/7 is the correct answer

[anushkagulhane]

HELLO MYSELF ANUSHKA GULHANE, ANSWER FOR TODAY'S HOMEWORK QUESTION IS (B), BECAUSE
A) IS √16=4, B) IS AN IRRATIONAL AND IT HAS NO SQUARE ROOT C) √100 =10 D) IS =(√12/3)=2

[grishamehta]

Answer for today's homework:
Option B-√12

[cliffspringers]

hello mam the answer for H.W is option B because it is not the square root of anything
and you class was very easy to understand😍👍👍

[Nik]

On 31:55 there is a pattern on the question
look its multiplied by 10 every time
Hence It Is A Pattern And Option C Is Correct

[perumaln]

I am seeing ur channel first time I am understanding clearly mam thank u..

[monalishanayak]

Is -3/+5 positive or negative rational number
I think it's negative
Because negative+ positive=negative
Am i right

[thenobleworldofhb]

OPTION. ( b ) root 12 because it is not a square of any number

[aarushidhingra]

Hello, I am Aarushi! The answer of the homework question is part (b) √12 which is a irrational number because it is not the square root of any number and it is never ending.