4:419:35 That smile in midst and end of thinking something critical says all about the problem. P.S. The homework question is even more interesting sir😄🙏
sir i have a doubt ... and i want you to read and reply please ... is skt series relevant for mains ... like i follow funda and skt also but skt series feels a little deviated from mains pyqs as i cant find anything similar toh pyqs so i am asking ... and mains ke liye aap series kab lare ho?
Yash. 1. Mains to aa hi gaya...Mains ke liye especially kya laana? 2. SKT is ultra important for advanced. 3. Funda is important for anyone jo adv mein 1-2000 rank laayega. 4. Mains 1st attempt ke liye tu sirf PYQs practice kar. Ye videos tu tab tak brain exercise ke liye dekh. Mains hote hi inki bahut need aayegi.
Point noted. Aap bhi ye video share kar dijiye to help our channel. We will be able to provide good content only when you guys will support us. Else poora YT par wahi sab random strategy chal raha hai.
Sir apka ek video dekha tha usmein apne bola tha orthogonality very important hai , can you pls illaborate like orthogonality pe wo 2(g1g2+f1f2) = c1+c2 aur uske respective circles ke equation nikalna aur kya important hai for theory?
okey sir got my doubt ... but one thing u can plan something crazy and mains se pehle can u provide us with all combined short notes in one go as meahne banaye toh hai but woh like time consuming hai so if u are comfortable in that like mathongo .. eduniti are doing it like that ... varna pyar toh hai hi hamara apke liye
But yash...is waqt kisi aur ke banaye hue notes se kya fayda hoga? Woh log sirf promotion ke liye kar rahe hain...Short notes insaan ke khud ke zaruri hain...But chalo mein kuchh karta hu
102* 2^99 My approach Seedha likha ulta likha then add. Last term(101th term) is exactly 2^100 while second last on combining with first gives the same which continues for next 99 terms giving a total 100 terms and additional 2 terms
Sir another method would be to look at the binomial coefficients and write the series as the x^2 coefficient of the series : (1+x)^2 /0!+ (1+x)^3/1!+(1+x)^4/2!.... This can be simplified into ((x+1)^2)e^(x+1) and with basic arithmetic and writing e^x as a power series we can see the the power of x^2 has a coefficient of 3.5e
Yes...But that's not the focus of video. There are many ways that series of r can be solved. We focussed on rearranging part. Just check the last question.
Sir mujhe 100C0 dekh ke laga ki 100 baar ayega to mene (x+1)^100 kiya jisko differentiate karke 100*(x+1)^99 aa rha h to sum ke barabr h then taking x=1 gives me 100*2^99 i dont understand how to get the additional 2*2^99 pleas help
sum(r from 0 to inf)[(r+1)(r+2)/r!) = sum(same limits)[(r^2 + 3r +2)/r!] = sum(r from 1 to inf)[r^2/r!] + 3*sum(r from 1 to inf)[r/r!] + 2 *sum(r from 0 to inf)[1/r!] 2 *sum(r from 0 to inf)[1/r!] = 2e 3*sum(r from 1 to inf)[r/r!] = 3*sum(r from 1 to inf)[1/(r-1)!] = 3*sum(r from 0 to inf)[1/r!] = 3e sum(r from 1 to inf)[r^2/r!] = sum(r from 1 to inf)[r/(r-1)!] = sum(r from 0 to inf)[(r+1)/r!] = sum(r from 1 to inf)[r/r!] + sum(r from 0 to inf)[1/r!] = 2e Ans = 2e + 3e + 2e = 7e
@@ashutoshshukla207However my focus was not on how you solve the later part of the problem but how you reach there. Glad you took out time. Please share this video to help our little channel.
@@anshul8330 well apparently my techniques are getting revealed seeing something on TH-cam that i found out by myself feels kinda awkward as I would have loved to teach it myself and show some great problems based on it but no worries
Bhai log plz share karo apne apne friends me aise hi bhut sare concept ke liye
Excellent 👌👌👌👌👌
❤Aapke support ke liye thanks!
Loved the explanation and Sir! Thank You for bringing such topics to light for helping us unlocking our understanding of problems 🙏🙏🙏🙏
❤ please share this video with others to help our channel
4:41 9:35 That smile in midst and end of thinking something critical says all about the problem.
P.S. The homework question is even more interesting sir😄🙏
Haan woh jyada easy hai homework wala.
Amazing video sir.. nice 👍
Thank you Rutuja. Please share it.
@anshul8330 sure sir
Aapke videos dekh ke sir Sequence and Series me confidence badh gya h 💯
I still remember the fundas of anshul sir ...nothing is more interesting than this❤❤
🎉 Glad you liked it!
Anshul sir ke fundas bahot help karte hai
❤❤😊
Easy solution for hard question 👌
❤❤
yeh vala easy tha hogya
🎉 Ye to Khushi ki baat hai :)
East or west anshul sir is the best...
North south ka kya bhai?😂
This was a very good funda Sir, converting the summation into something more manageable, thank you🙏. Is the ans 102(2^99)?
Yes correct.
❤Please share the video so that team feels appreciated.
sir i have a doubt ... and i want you to read and reply please ... is skt series relevant for mains ... like i follow funda and skt also but skt series feels a little deviated from mains pyqs as i cant find anything similar toh pyqs so i am asking ... and mains ke liye aap series kab lare ho?
Yash.
1. Mains to aa hi gaya...Mains ke liye especially kya laana?
2. SKT is ultra important for advanced.
3. Funda is important for anyone jo adv mein 1-2000 rank laayega.
4. Mains 1st attempt ke liye tu sirf PYQs practice kar. Ye videos tu tab tak brain exercise ke liye dekh. Mains hote hi inki bahut need aayegi.
Hmm sir 2026 kaa batch ab la deejiye early 12 ka sab koi laa rha ab
Sir kuch circles aur conics ke liye bhi bana dena
Point noted. Aap bhi ye video share kar dijiye to help our channel. We will be able to provide good content only when you guys will support us. Else poora YT par wahi sab random strategy chal raha hai.
@anshul8330 ok sir, thanks for giving this much efforts
Sir apka ek video dekha tha usmein apne bola tha orthogonality very important hai , can you pls illaborate like orthogonality pe wo 2(g1g2+f1f2) = c1+c2 aur uske respective circles ke equation nikalna aur kya important hai for theory?
@sauradeepgoswami4806 Orthogonality of any two curves important hai... Application of Derivatives mein hai
@sauradeepgoswami4806 Orthogonality of any two curves important hai... Application of Derivatives mein hai
okey sir got my doubt ... but one thing u can plan something crazy and mains se pehle can u provide us with all combined short notes in one go as meahne banaye toh hai but woh like time consuming hai so if u are comfortable in that like mathongo .. eduniti are doing it like that ... varna pyar toh hai hi hamara apke liye
Short notes? Kuchh jugaad karta hun
But yash...is waqt kisi aur ke banaye hue notes se kya fayda hoga? Woh log sirf promotion ke liye kar rahe hain...Short notes insaan ke khud ke zaruri hain...But chalo mein kuchh karta hu
❤
Thanks Minhaj!
51. 2¹⁰⁰ is ans ❤
Aapne sahi jawab diya hai!
Please share the video if you liked it.
Homework answer :- common series bann jaati hai 100C0 + 2.100C1 + 3.100C2 waali, answer 102 x 2^99 aa raha hai sir ji
Sahi jawab Dost!
Ye HW wala sawaal meine Narayana ki coaching se liya.
102* 2^99
My approach
Seedha likha ulta likha then add. Last term(101th term) is exactly 2^100 while second last on combining with first gives the same which continues for next 99 terms giving a total 100 terms and additional 2 terms
अच्छा है एकदम!
वीडियो शेयर कर दो तो हेल्प our little चैनल❤
Sir another method would be to look at the binomial coefficients and write the series as the x^2 coefficient of the series : (1+x)^2 /0!+ (1+x)^3/1!+(1+x)^4/2!.... This can be simplified into ((x+1)^2)e^(x+1) and with basic arithmetic and writing e^x as a power series we can see the the power of x^2 has a coefficient of 3.5e
Yes...But that's not the focus of video. There are many ways that series of r can be solved. We focussed on rearranging part.
Just check the last question.
Also the answer to the hw question is 51(2)^100
@@painfullystupid9692this looks correct 🎉
Nice work dost. Please share our video to help students and our channel.
Sir funda series wapas shuru kar dijiye pls
Sir ji 2025 ane wala hai ab kab batch laa rhe hai 12 bata degie plz hmko aapse hi padhna hai maths plz sir
२०२५ ka to exam aaa gaya hai...unka kaisa batch? Matlab revision?
@anshul8330 nhi sir 2026 ke liye early 12 batch
@Itz_gaming2.0 Woh to launch karunga hi
@@anshul8330 kab sir plz jldi karna
Yes sir ab pura 1 saal baccha hai first mains ko sir ji batch laa hi do early 12 ka for 2026
Sir mujhe 100C0 dekh ke laga ki 100 baar ayega to mene (x+1)^100 kiya jisko differentiate karke 100*(x+1)^99 aa rha h to sum ke barabr h then taking x=1 gives me 100*2^99 i dont understand how to get the additional 2*2^99 pleas help
100 baar nahi 101 baar aa raha hai...
@@anshul8330sir I finnally got it thankyou so much
Since 100C0 101 baar h to humari term x*(x+1)^100 agyi so that will be 102*2^99 thankyou sir
Bhai log anshul sir ek Google meeting karenge jisko jisko batch me ana hai wo join ho jana sab plz tab hi batch aayega
Kab hoga yeh?
@sauradeepgoswami4806 ab sir pata nhi kab karenge
@sauradeepgoswami4806 par sir karenge to ana bhai
@sauradeepgoswami4806bhai dekho acadza ke community par join hu jana bhai pls batch ke liye
@@FizaRizwan-zg3qp login toh kiya hua hai but bar bar logout ho jata hai pata nahi app ka kuch problem hai
102*2^99
❤ Correct. Video pasand aaya to share kar dijiye please. 😊
sum(r from 0 to inf)[(r+1)(r+2)/r!) = sum(same limits)[(r^2 + 3r +2)/r!] = sum(r from 1 to inf)[r^2/r!] + 3*sum(r from 1 to inf)[r/r!] + 2 *sum(r from 0 to inf)[1/r!]
2 *sum(r from 0 to inf)[1/r!] = 2e
3*sum(r from 1 to inf)[r/r!] = 3*sum(r from 1 to inf)[1/(r-1)!] = 3*sum(r from 0 to inf)[1/r!] = 3e
sum(r from 1 to inf)[r^2/r!] = sum(r from 1 to inf)[r/(r-1)!] = sum(r from 0 to inf)[(r+1)/r!] = sum(r from 1 to inf)[r/r!] + sum(r from 0 to inf)[1/r!] = 2e
Ans = 2e + 3e + 2e = 7e
Sorry, Not able to use proper symbols.
Yes that's also correct. ❤
.
@@ashutoshshukla207However my focus was not on how you solve the later part of the problem but how you reach there.
Glad you took out time. Please share this video to help our little channel.
answer is 102*2^(99)
Ye question Narayana ki test series se uthaya hai...
Agar pasand aaya to video share kar do!
Differentiation click nhi hua
Haan woh achha step hai!
Share our video to help our little channel!
Sir my answer is 101x2¹⁰⁰
😐💔
Kya hua? Why sad?
@@anshul8330 well apparently my techniques are getting revealed seeing something on TH-cam that i found out by myself feels kinda awkward as I would have loved to teach it myself and show some great problems based on it but no worries
100*2^99 is the answer
Term kya bana?
@@anshul8330 Tr= (r)*(100Cr)
गलत लग रहा है
51*(2)¹⁰⁰ ?
Haan, ekdum correct.
If you like the video please share it for others. It keeps our team motivated.
51*2^100
Haan ji...Video share karenge to humein fayda milega
@anshul8330 yes sir
51 ya 102?
Sorry 51*2^100
Or 102 * 2^99
50 * 2^100
Thodi mistake hai shayad. Recheck
102 × 2^99 is the answer
🎉 sahi jawab. Isi khushi mein video share kar do!