Ah, that was novel, a multiple choice question in which all the answers are wrong! Until, the correct answer is finally revealed, off screen.
@LKLogic Жыл бұрын
Dave❤️
@268dar10 ай бұрын
Thinking outside the box
@kugamer_644 ай бұрын
It can be more easier like you know the trick of finding the sum of natural numbers which is given by “(n(n+1))/2” easy 😙
@jaisriram070073 ай бұрын
Dude came in clutch👉
@rameshchandra-qg9sw Жыл бұрын
Not a good solution. This is a simple addition of arthimetic progression = n(n+1)/2. The actual formula for any arthimetic progression for a, a+d, a+2d,.....,a+(n-1)d. Sum = n/2[2a + (n − 1) × d]
@mahtabaghaee6406 Жыл бұрын
You are right. A normal student also knows that the solution is this, let alone an Olympiad student.
@jaisriram070073 ай бұрын
n(n+1) /2=36/2*37=18*37=666
@user-xl2xx8gd4x Жыл бұрын
It's just root under 36×37/2
@princesaxena35875 ай бұрын
If I am not wrong, this is the simple formula for the sum of an AP, (S = n/2(a + l)), I don't think it would be right to call this a trick since most students giving olympiad normally know these formulas
@noone-ex2cx21 күн бұрын
1:46, you'll never see its comiiiiiiing
@Krestor1Ай бұрын
if 'a' is taken as the final number and 'b' is taken as the initial number then it can be written as - [a^2 - b^2 + a + b] / 2
@VoidloniXaarii9 ай бұрын
I remember these kinds of problems, thank you very much 🥳🤗
@LKLogic9 ай бұрын
You’re welcome 😊
@Soft_war.941 Жыл бұрын
Thank you. You are very good and this instance very beautiful ❤
@LKLogic Жыл бұрын
❤️
@AnalogDude_8 ай бұрын
awesome.
@historylegends7608Ай бұрын
This is no olympia this is a 3rd grader school question for turkish education
@killertiger54994 ай бұрын
Why couldnt i just calculate all of them one by one
@mohamedarafath14252 ай бұрын
Very nice
@Manmade023 Жыл бұрын
Mind blown
@LKLogic Жыл бұрын
❤️
@Basics_Learnia Жыл бұрын
Wow amazing
@LKLogic Жыл бұрын
Thank you🥰
@nvvssnmurthy59032 ай бұрын
Sum of first N natural numbers method is more easy.
@mythologicaleditorАй бұрын
Simple:- Sn ka formula lagao Thank me later
@thatomofolo452 Жыл бұрын
Factors 💯
@LKLogic Жыл бұрын
👍🏻🥰
@thatomofolo452 Жыл бұрын
@@LKLogic 🤸🤸🤸♥️💫
@user-cx4gc5lh4b9 ай бұрын
I was wondering why all the answers I saw were wrong. 😆 FWIW, I'd simply it to 3 sqrt(74)
@oleganisimov90043 ай бұрын
Что за прикол с вариантами ответов, почему D не показали сразу. Решил, а ответ ни один не подходит... Подумал, что туплю, пришлось целиком это длинное видео смотреть!))
@beenamishra81836 ай бұрын
A simple ap question...
@raymondmoumouАй бұрын
3 solutions fausses apparaissent pendant la démonstration ! La 4ème (d), qui est la bonne, n'apparaît que quand tout est terminé !
@barthennin60889 ай бұрын
I tackled it a slightly different way...I ignored the 1st 3 terms (1+2+3 = 6; we'll add this in at the end) and paired off 4+36=40. 5+35=40... to 19+21=40...(the 20th term = 20 and is left unpaired and so, again, we'll add it in at the end. SO... You have 36 terms less the 1st three and the 20th term which that leaves 32 terms that are sorted into 16 pairs that equal 40. 16x40 +20 +6=666 ... The ADVANTAGE is it's easier to multiply round #s like 16X20 rather than 18X37 (in my humble opinion).
@tanushridas3830 Жыл бұрын
3√74 is the answer and gaueses law are very effective to solve this problem .
@wenzhongwei23126 ай бұрын
We can’t see answer, d
@Wangkheimayum421 Жыл бұрын
Your options doen't have the Answer
@anshulkamboj40499 ай бұрын
The solution Given In video makes No sense and is totally irrelevant. A student may learn the wrong way to attempt such questions and totally screw his learning procedure. Correct way to attempt this question is to Use Sum of n terms of A.P which is n/2 ( 2a + (n-1)d).
@xxgibranxx18466 ай бұрын
I though all answer are wrong🤣
@krishnannambiar59889 ай бұрын
C)=666
@jasvinderjc7 ай бұрын
1 + 2 + 3 + 4 + 5 + 6 +…+36 36 + 1 = 37 35 + 2 = 37 34 + 3 = 37 33 + 4 = 37 and so on… There are 18 pairs of even and odd numbers between 36 numbers. Therefore, 18 x 37 = 666 So the answer is 666.
@mathswithshooky6 ай бұрын
Don’t forget the square root
@Mecha_Math28 күн бұрын
Application
@YASIRALIVIRK Жыл бұрын
Me in .... With u
@LKLogic Жыл бұрын
🙌🏼🥰❤️
@alster724 Жыл бұрын
The answer is sqrt(666) Here is my trick... I used the sum of arithmetic series and the "Last Digit Trick" Sn= n/2(a1+an) Sn= 36/2(1+36) Sn= 18(37) Sn= 666 So sqrt(666) I solved it like a beast (pun not intended)😮
@panchujena5298Ай бұрын
This is not the right answer (√666) the right answer is 666 😅
@booyaz Жыл бұрын
I don't believe in anxious writing I think this isn't true 28.80 ≃ √666 ≠ 100%
@alster724 Жыл бұрын
Or as the memes say 25.80 is the (square) root of all evil