Q.1 ) is 9/420 a terminating or no n- terminating decimal number ? 9/420=0.02142857142857 Non-terminating recurrinng Q.2)radius of a circle is 7 .Circumference of the circle a rational or an irrational number? Soln :- C=2πr r=7 C=2×22/7×7 =44 Rational number
Sir you are superb , excellent explanation 👏🤘👌👌👌👌👌👏👏👏 Sir here Are the answers 1) non terminating and recurring 2) circumference is irrational Because for finding circumference we multiply with pi ; which is an irrational no.
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Q1 Correct! Q2 Answer is irrational number. pi = 3.14 is only an approx. As we discussed pi is an irrational number. So if you calculate 2 x pi x r, it is also an irrational number.
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I watched I couple of videos... And I couldn't understand the irrational numbers on number line but I watched ur video and could understand it very very nicely.... I am a student of manocha academy website :) Answers of homework questions :- Question 1 answer- Non terminating i guess... And answer 2- Rational number... Thanks for the wonderful class :)
Manocha academy is gifted for scholars who have big dreams of going to IIT and other renowned engineering institutions. A big thanks to Manocha academy for such valuable and useful information.☺☺☺
Sir, I have solved the problems 1. GIVEN 9/420 THE DENOMINATOR 420= 2x2x3x5x7 9/420= 9x(9/3)x(9/5)x(9/7) The first three are normal(terminating) but 9/7 is not. Hence the given number will be non-terminating as it is multiplied by a non-terminating number. Hence,9/420 is a non-terminating number. 2. We know that, c=2pi x r pi is an irrational, transcendental no. Hence, any number, which is rational, multiplied to pi will always be irrational In this case, the radius is 7, then no. we will multiply is 14 x pi(which is clearly an irrational no.) An irrational no. will always be non-terminating. Hence it is a non-terminating number.
Excellent!! Both your answers are correct :) Q1 simpler way is: 9/420 = 3/140 = 3 / 2 x 2 x 5 x 7 Denominator has 7. So not factors of 2 and 5 only. Hence it is a non-terminating number. Q2 Absolutely right!
This video was really helpful for me.... Before I couldn't understand how to plot an irrational number on number line after viewing this video I could understand clearly....All the concepts were explained very well
q1. when we prime factorise the number 420, it is 2*2*5*3*7 as only 2 and 5 should be included there are 3 and 7 as well so hence 9/420 is non terminating q2. after finding out the circumference of circle the answer is 44 as 44 is rational number
(Answer of Q1) To know if any fraction is terminating or non-terminating decimal number, we need to look at the prime factors of the denominator in its simplest form. Now, the simplest form of 9/420 is 3/140. 140=2 × 2 × 5 × 7 Since, 140 has factors except 2 & 5, the given fraction is a non-terminating decimal number. (Answer of Q2) Circumference = 2 × π × radius = 14π As π is an irrational number, 14π is also an irrational number.
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Thank you so much sir this was a really great vdo and made the concept really easy for me it was hard and for me before as syllabus change in ninth so once again thanks sir
There is a mistake in your part Terminating number part 142857 Is changing 8 into 9 in third time division Dont be angry to me I just try to _________ understand you 😕
@@mememinati1k268 yea bro, actually I have adhd. It's a disorder in which you can't concentrate on things. So it gets harder for me to understand things.
Q.1 ) is 9/420 a terminating or no
n- terminating decimal number ?
9/420=0.02142857142857
Non-terminating recurrinng
Q.2)radius of a circle is 7 .Circumference of the circle a rational or an irrational number?
Soln :- C=2πr
r=7
C=2×22/7×7
=44
Rational number
Good job 👌👍
Sir you are superb , excellent explanation 👏🤘👌👌👌👌👌👏👏👏
Sir here Are the answers
1) non terminating and recurring
2) circumference is irrational
Because for finding circumference we multiply with pi ; which is an irrational no.
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Happy to help
Hi
@@vinodkumarreddy8107?
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Thank you sir for teaching us the best
This particular lesson was so hard for me to understand
but with this live stream of yours I have understood the concept of this lesson
and I have subscribed keep up the good work, SIR.
When I search for number systems I was hoping for your video to come.
And it came.
Thank you so much sir
You are welcome
Very good explanation Sir! It makes mathematics so easy!
Glad to hear that
1).is. non terminating decimal no.
2)is that is rational number..........
1st comment sirrrr.... Explanation
2pi r
2*3.14*7
43.96
Are these correct or not sir
Q1 Correct!
Q2 Answer is irrational number. pi = 3.14 is only an approx. As we discussed pi is an irrational number. So if you calculate 2 x pi x r, it is also an irrational number.
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It's my pleasure
21:50
That saved a looot of time rather than dividing.
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It's my pleasure. Glad you liked them
Thank you for making this video in school my child cannot learn how to do this method now he can do number system now due to watching this video I am really happy😊😊😊
It's my pleasure
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U made this lesson easy for me
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I watched I couple of videos... And I couldn't understand the irrational numbers on number line but I watched ur video and could understand it very very nicely.... I am a student of manocha academy website :)
Answers of homework questions :-
Question 1 answer-
Non terminating i guess...
And answer 2-
Rational number...
Thanks for the wonderful class :)
I have even shared it with my friends
Thanks a lot for sharing :)
Manocha academy is gifted for scholars who have big dreams of going to IIT and other renowned engineering institutions. A big thanks to Manocha academy for such valuable and useful information.☺☺☺
actually it is the reality
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It's my pleasure
I'm really 😊very fascinated in your teaching style Sir 👏👍👌. This is Samatha, your student 😃. Thanks 🙂.
Q 1 = non terminating decimal number.
Q2 = irrational number
9/420 is a non terminating fraction
The circumference of the circle by the given radius is a rational number as it expressed the form (p/q as 44/1)
Sir your teaching can be understood very clearly. Thank you so much sir
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Sir, I have solved the problems
1. GIVEN 9/420
THE DENOMINATOR 420= 2x2x3x5x7
9/420=
9x(9/3)x(9/5)x(9/7)
The first three are normal(terminating) but 9/7 is not. Hence the given number will be non-terminating as it is multiplied by a non-terminating number.
Hence,9/420 is a non-terminating number.
2. We know that, c=2pi x r
pi is an irrational, transcendental no.
Hence, any number, which is rational, multiplied to pi will always be irrational
In this case, the radius is 7, then no. we will multiply is 14 x pi(which is clearly an irrational no.)
An irrational no. will always be non-terminating. Hence it is a non-terminating number.
Excellent!! Both your answers are correct :)
Q1 simpler way is: 9/420 = 3/140 = 3 / 2 x 2 x 5 x 7
Denominator has 7. So not factors of 2 and 5 only.
Hence it is a non-terminating number.
Q2 Absolutely right!
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Positive intigers
0.5
U explain very well. U can explain about anything in the entire world.
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Happy to help
Q1. Non terminating recurring
Q2. Terminating
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Thanks
No
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Awesome to hear that!! Thanks for sharing :)
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Same! I was also searching in English!!!
This video was really helpful for me.... Before I couldn't understand how to plot an irrational number on number line after viewing this video I could understand clearly....All the concepts were explained very
well
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You are most welcome
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Good morning Sir ,I Likd your teaching
1:9/420= not terminating
2:is circumference ration or irrational ans= irrational
Sir you explains very well👍👍👌👌
Great to hear that you liked the video!! Thanks :)
q1. when we prime factorise the number 420, it is 2*2*5*3*7
as only 2 and 5 should be included there are 3 and 7 as well so hence 9/420 is non terminating
q2. after finding out the circumference of circle the answer is 44 as 44 is rational number
Sir explaination is nice
Thank you!!
Fantastic way of explaination Sir. Especially why pi is irrational.
I . Non terminating
I I. Non terminating ,but 22/7 (approx) then terminating . "PRESSURE "PLEASE
Very good!! Right answers :)
For Q2, you should write irrational number. Yes, we should not consider approximation of pi.
@@ManochaAcademy hai
This crouse is used for synic sri
Q1. Non-terminating recurring
Q2. Irrational
Thank you so much sir
Most welcome
(Answer of Q1) To know if any fraction is terminating or non-terminating decimal number, we need to look at the prime factors of the denominator in its simplest form.
Now, the simplest form of 9/420 is 3/140.
140=2 × 2 × 5 × 7
Since, 140 has factors except 2 & 5, the given fraction is a non-terminating decimal number.
(Answer of Q2) Circumference = 2 × π × radius = 14π
As π is an irrational number, 14π is also an irrational number.
Thanks to give answer with explanation
Thank teacher
You're welcome!
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Thanks and welcome
Sir this video was very helpful👍
Glad it helped
Video starts at 1:53
Excellent teaching🙏🙏🙏
Very good explanation Sir! It makes mathematics so easy! But Sir please make a video on irrational numbers as well...
Hi sir ,
I am S. Manyatha reddy this app in very nice and u are amazing sir i am sure .And u r telling nicely and intersting also .sir your class and the way of explaining and teaching also very good . Why because i have byjus talent test exam in that number system is there now i know all in this lesson .
THANK U SIR 😀😄👭👌
I dont understand anything about roots, can you please explain me like the adding multiplying and dividing of roots ?
Consider that the root is a variable like x
And try solving it
@@div.8192 thx
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You are most welcome
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Thank you so much sir this was a really great vdo and made the concept really easy for me it was hard and for me before as syllabus change in ninth so once again thanks sir
You are most welcome
Hi sir
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Thanks for liking
@@ManochaAcademy can u explain more about rationalizing numbers (questions)
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1- non terminating
2- irrational
Your explanatioan made this chapter easy for me sir
Excellent
There is a mistake in your part
Terminating number part 142857
Is changing 8 into 9 in third time division
Dont be angry to me
I just try to _________ understand you 😕
thanks sir i just reached class 9 and this is going to help ma a lot
First learn english:)
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Sir,Is non terminating and recurring same ?
No
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Q1 ans- non-terminating and recurring
Very good! Correct :)
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Q1) 9/420 is non- terminating as its factors are 2,3 and 5
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Most welcome
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1. non terminating
2. irrational number
❤❤❤❤❤❤❤😂😂😂🎉😢
@@Noxgamer-h6n 2 is rational
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Hi
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Thank sir easy to understand
Always welcome
1.non terminating
2.irrational
Super!! Correct answers :)