Arithmetic Progression 03 | How to Assume Terms | Best Problems on Sum to n terms | Class 10 | NCERT

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Scheduled Syllabus For Udaan ( Class 10 ) released describing :-
which topics will be taught for how many days.
Available at PhysicsWallah App

Duration:-2 months (Dec 2020 - Feb 2021)
Free Batch Exclusive on our YouTube Channel : Physics Wallah Foundation - 9 & 10

Batch Details

1)Best Faculties across India for different Subject/Topics.

2)Complete & Relevant Syllabus Coverage of Class-10th within 2 Months- Fastrack Dec 18,2020-Feb 24,2021
3)Monday-Saturday : scheduled Classes everyday ( for each Physics, Chemistry,Mathematics , Biology and SST)

Physics:Mon,Wed,Fri (4:00 p.m)
Chemistry:Tues, Thurs, Sat(4:00 p.m)
Mathematics:Mon, Tues, Wed,Thur,Fri,Sat(7:00 p.m)
Biology:Mon,Wed,Fri (6:00 p.m)
History & Geography: Wed,Thur,Fri,Sat (5:00 p.m)
Civics & Economics: Mon,Tue,Thur (3:00 p.m)

4)Scheduled Syllabus released describing :-
which topics will be taught for how many days.
Available at PhysicsWallah App

[PW-Foundation]

Scheduled Syllabus For Udaan ( Class 10 ) released describing :-
which topics will be taught for how many days.

Duration:-2 months (Dec 2020 - Feb 2021)
Free Batch Exclusive on our YouTube Channel : Physics Wallah Foundation - 9 & 10

Batch Details

1)Best Faculties across India for different Subject/Topics.

2)Complete & Relevant Syllabus Coverage of Class-10th within 2 Months- Fastrack Dec 18, 2020-Feb 24, 2021
3)Monday-Saturday : scheduled Classes everyday ( for each Physics, Chemistry, Mathematics, Biology and SST)

Physics:Mon, Wed, Fri (4:00 p.m)
Chemistry:Tues, Thurs, Sat(4:00 p.m)
Mathematics:Mon, Tues, Wed, Thur, Fri, Sat(7:00 p.m)
Biology:Mon, Wed, Fri (6:00 p.m)
History & Geography: Wed, Thur, Fri, Sat (5:00 p.m)
Civics & Economics: Mon, Tue, Thur (3:00 p.m)

4)Scheduled Syllabus released describing :-
which topics will be taught for how many days.

[Crk-otum]

53:00, I think Sir did the question in a bit complex way as I tried in the following way:
a1= 1, an= x and d=3. Since Sn = n/2(2a+(n-1)d), so 287 = n/2(2+3n-3)
574= 3n^2-n
3n^2-n-574=0
Solve quadratic and n= 14 will be the accepted root.
Here n=14 not x
So, an= a14= 1 + (14-1)*3= 40
Since we had assumed an=x, so an=40

[jagritigupta]

54:23
Homework answer:-
X= 40.
And lecture was incredible and inspirational also as usual 😊😊

[shubhampaul]

Love you sir

Thanks to you all teachers who have made our studies more easier in free of cost 🥰🥰

[AdityaSingh-cwzw]

Sir value of x is 40
Macha diya sir 🔥🔥
Selection of A.P achee se samaj aa gaya once again macha diya sir🔥🔥😎😎

[Study_xD]

sir aapka intro bahut hi inspiring hota h and you are my favourite maths teacher

[suhanichoudhary]

Nice I understood it now practice is left
Thank you so much

[siddharthchaudhary]

You are my favourite teacher, i appreciate your teaching way, thanks nd always be with us❤❤❤❤

[gamingbeast]

Sir the homework answer is x=40

And thanks for incredible class👍

[rahulsinha]

Sir aap itna accha kaise pdhate ho!
Love You Sir!!💕💕

[nandanikumarisingh]

Sir, I solved every question and feels very happy now. Thank you sir 🥰

[Kashish-ntgp]

😊 how many are there of session 2023-24 😊

[ChandanKumar-qhtl]

Sir, i have done all questions THANKS FOR YOUR AMAZING LECTURES

[imamangoo]

solved every single question correctly and with that powerful ending im highly motivated

[awesomesatyam]

sir kya ye 2022-2023 ki 10 walo ke liye v h
nd ye SN ka formula school me valid h????



plzz







plzzz answer

[shreyadv]

sir by taking the terms as a-2d, a-d, a+d, a+2d the common difference came as +/-2. sir please and my doubt. 25:06
sir why cant we select other terms in such a way that even they will get cancel. are we supposed to take only the terms told by you for the respective number of terms?

[AdityaSingh-cwzw]

Sir what's your plan after completing batch Uddan❓

[ADITYAPANDEY-rhhc]

Way of teaching is very great sir..👌🙏😊

[jagritigupta]

Sir is this right?
That, a^n = last term i.e (l)
It means that kya hamlog a^n ko hi last term se denote karte hai? 🤔🤔

[shareefkk]

Sir in the time of video 38:09 we should also.take 500 cause the question have mentioned b/w 1 to 500 not less than 500...
Or I am wrong please clear my doubt