GCSE Maths - How to Write Expressions for the nth term of Arithmetic Sequences #55

[@Cognitoedu]

If you’d like to practise the material covered in this video, check out our platform at www.cognitoedu.org - it's totally free, and has been built to make learning and revision as easy as possible. The main features are: - Lessons organised by topic, only the lessons relevant to your specific exam board and tier are shown. - Automatic progress tracking. Progress bars tell you what you’re doing well at, and what you need to spend some time on. - Practise quizzes so you can test your knowledge. You can quiz yourself on any combination of topics you like. - A huge number of fully-hinted questions that take you step-by-step through some of the trickiest calculations & concepts. - A comprehensive bank of past exam papers, organised both by year, and also by topic. Amadeus & Tom

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Me😢

[@yusrafarhan5249]

I never found a more helpful channel for my studies. Please continue making videos on GCSE syllabus. Thank you so much!

[@Cognitoedu]

Ah thankyou Yusra, glad the channel is helping!

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[@Cognitoedu]

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[@Abyss777]

@@Cognitoedu can you also make a video on complicated sequences.. like in which the common difference isnt the same for all the terms... I hv prblm finding the nth term of that.. if u can, that would be helpful!!!

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[@artistic73]

I have been trying to understand this from almost 1 year but , my maths teachers at school aren't that good at explaining. Tomorrow is my maths paper and you re literally a lifesaver For real, thank you so muchhh❤

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WHAT

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Personally the building looks better

[@misterbaleize]

Without doubt the most comprehensive (and simplest) explanation on the internet - thank you!

[@Cognitoedu]

Thanks misterbaleize glad it was helpful!

[@archish405]

Another way to solve this is using the formula a(n-1)d , where a= first term, n= nth term and d= common difference. But it will only work for arithmetic sequences.

[@hafsaabdi7338]

Ok, I ain't in my GCSE's yet, but I discovered this channel in year 7, and it helped me pass my physics exam 😅 I lowkey never knew they extended onto other subjects 😂 😊😂😂

[@just4467]

out of the 7 videos your video was the only one that helped me

[@lilygillard9131]

just me who found nth term questions IMPOSSIBLE before this video, this has helped so so much!

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Fantastic channel, explained very well, my 10yr old is so happy to find this, said he's making her understand so easily, happy child happy mummy😁

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6 mins helped more than a 45min lesson in school

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I've been trying to find a helpful video for this topic all day and you just rescued me. Thank you so much for this video. Love the explanantion!!!!

[@Cognitoedu]

Ah thank you so much Dania, really glad we could help 👍

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Love these videos, as a Maths teacher. I link these to my google classroom lesson so that students are able to revise and review at home.

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Real

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You explain it better than my math teacher 💕thank you

[@Cognitoedu]

You're welcome 😊

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I am in year 9 and this helped a lot

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you are the top g my guy you helped me out alot thanks

[@ZAIDMAJDIMOHAMMADAL-LAHAM]

He legit explained this lesson better then my math teacher. He even did it in 6 mins

[@montahaal-mehdhar]

He's better than my teacher I finally understood this thank you!!

[@Wrenwinterfall]

thank you so muchh ! I'm a 9th grader and I learned this last year but now I couldn't really remember anything. Thanks to this video I've understood everything clearly!

[@billycooper21]

cảm ơn anh đã dậy em cách để làm nth term, ngày mai, em sẽ nhảy từ lầu 3 lên lầu 2 🙏🙏🙏🙏🙏🙏

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This is like the best explainer videos for edexel GCSE

[@ayydomino30]

Thank you so much!! This kind of easy to understand content helps a lot, especially in a subject like mathematics. Mathematics is a broad subject and if you don't understand the basics or the simplest ways to solve the problem, you would easily lose confidence and be demotivated. You'd be more likely to quit and just shut down everything and sleep. When I attend classes to learn a lesson, I feel like it doesn't help me a lot. There's chaos, gossip, some students understand stuff before you do (which can easily make you feel inferior/weak in that subject) and it's not always the perfect environment to ask the teacher questions. I know we are supposed to clear any doubts we have by asking the teacher but it doesn't always work out. So, this kind of content by Cognito helps millions of students who struggle, not kidding!! Thank you to Cognito and the teachers, the content creators, the animators, the editors and the whole team in general. I really appreciate what you all are doing! Keep it going!

[@Cognitoedu]

We're really glad we could help you and keep you confident with maths 😊 Thanks!

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POV: u realised that u learnt this in 4th grade

[@blah_255]

You learnt this in 4th grade? What year is that in the uk I swear I never learnt this until year 10

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Yeah im aisian🤣

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@@Lynthechickennugget Makes sense im from England 😂

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I love you i have an exam tomorrow and this helped alot

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bro i have an exam in 5mins 💀

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[@SoraAsahi]

I am preparing for my mock exams, and I've never been so glad to come across a channel like I have now! Thank you so much, it was really helpful!

[@Cognitoedu]

Haha we're glad you found us! 🙌

[@tejaschanchal763]

Wow I knew a method to find out nth term for arithmetic sequences, but it involved making a table of values with the sequence and the nearest n term. For example if I had 5, 9, 13, 17 I would try 4n which is 4,8,12,16, and then I would know that it is 4n+1. However my method sometimes had me getting stuck, but this method is infinitely easier and faster!!! Thank you for showing us this method, loving your videos on math, physics and chem. Good luck with future videos!!

[@Cognitoedu]

Thanks Tejas, glad to hear our videos could help! 😊

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i agree my g

[@Loraxe764]

I have been trying to understand this for months and it took you 6 minutes to make me get it. THANK YOU.

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wow thx this is a channel which helped me in the GCSE'S😀😃😄

[@unknownuser_6969]

This video explains better than my teacher

[@anhnguyenphuong9790]

I have a question for finding the expression,could finding the number before the first term also be negative

[@Jackkifahemate5]

Nice tutorial thank you Mr God bless 🎉

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Your videos are so Clare I could drop out of school and I'll still learn Asif I am in school 🤩

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spelling man no offence "Clare" is "clear" and "Asif" is "as if"

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maybe you shud leave maths and focus on ur english bro 😂😂

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interesting been very helpful to me

[@asiyamalik6636]

very well explained, thank you

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what a saver ! mytextbook didnt even explain that clearly

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This is my 1st math's video, I usually see this channels science videos more.

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thanks, this helped so much!

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These videos really help me when I forget some maths problems like nth and ect. And it helps to recap some maths

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Cheers g, got a test in a couple days

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Amazing and so much help! Thank you!

[@Daniel-j6d9s]

I have failed my maths exam and i had to repeate it and inshala I will get better marks Thanks alot cognito

[@johannagadhikari3340]

You can also with the sequence, do this: 1.Find the difference 2.Below that, write the times table of the difference 3.Find out how from the times table you get to the sequence

[@fieryfox9496]

These videos are always so helpful Thanks

[@ZephaniahsLearningReview2012]

I needed this for my test

[@silenceplzyeah2019]

What about if the difference is through division and multiplication??

[@bearah4386]

this is great thank you soo much this will rlly help me!!

[@blah_255]

Thank you so much.I looked at so many vidoes and did not understand until I found you!

[@RR-bq7tm]

what should be do when dividing a term?

[@mateovalverde]

THANK YOUUUUU. AMAZING

[@holleyjane7993]

Thank you for your videos. I'm a mother of 4 young children, two with special needs and trying my hardest to pass these exams alongside everything else, all so I can get into med school to become a doctor. You explain things in a way that's generally worth so much credit. Number one fan here! Exams in June for maths-english-biology, if I get my A's I will owe you a lot of credit!

[@Cognitoedu]

Thank you Holley! Best of luck 🤞

[@TypicalSullyEditz]

how did they go holley?

[@kkskol2557]

God bless bro ur so helpful

[@esme1844]

Thank you so much this was so helpful 😁

[@CLARICEMOKTZETHUNGMoe]

does this work with all sequences?

[@mchoti1984]

Omg, thank you so much for this tutoriall ❤

[@thecruzbrozshow]

Nice one bro

[@aj20084]

Can i also use ur vids for IGCSE?

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Love your videos

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[@wilcifyplayz4103]

Thank you so much!!, This is so helpful

[@roselynm646]

Can you help out with this one pleeeaaase? Here’s the sequence. The third term of the sequence is 11. ….. ….. 11 ….. The rule for this sequence is ‘add four to the previous term then divide by two’. Work out the first term of the sequence.

[@Twelveeyesofficial]

i woyld like to thank this channel for saving me in eighth grade from failing

[@3ly415]

What about doing it with fractions and decimals?

[@sudharshanthesutha8242]

Please answer this Work out the first 3 terms of a sequence when the nth term is 2n²+3

[@sissi9100]

I think it means to replace the n with 3, so n=1 2(1)^2+3= n=2 2(2)^2+3= n=3 2(3)^2+3= the answer

[@sudharshanthesutha8242]

@@sissi9100 thanks a lot😁

[@sissi9100]

@@sudharshanthesutha8242 np :)

[@drreaper8856]

For the nth term, how did you get the second digit? Like 4n+1, how did you get 1

[@Abeeredits_]

do the first number in the sequence (5) and then take away the number before n (4)

[@jurikanecatagbo8344]

Thank you for this video

[@gollamandalavijaya410]

Thanks a lot sir there is no other channel that makes sense in Math's, except your channel. Thanks a lot!!!

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Thank you so much! This is so helpful! :)

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I have been struggling to understand this topic for 3 hrs but after watching the vid i finally understood it tysm

[@RATATALEE_2]

This will help in my exams thanks:D

[@Agent_Jackie_from_ohio]

Cognito is goated

[@myra197]

How about number sequences that has a geometrical pattern ( ×/÷ ) ?? How do you figure out what to put before 'n' in the nth term expression?

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0:02 i can always recognise cognito with that sound

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You are amazing absolutely amazing 💕💕💕💕

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thank you this was relay help full

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1 hour before my exam and you taught the better than my teacher

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You explain this way better than my maths teacher

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Thank you, maybe i wont fail my gcses after all fr

[@rinadsalih9583]

Thanks it was really helpful ❤ Can u please make other videos for other types of sequences?

[@CAT_FB_1]

what if the sequences are non-linear? what should i do here?

[@kereshastupart5701]

Is this for GCSE's? (Because my school teaches me this in yr8?)

[@HZD10-mes]

what if the common difference is multiplied?

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please make a video on quadratic sequences

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the day before paper 3 maths gcse I finally understand this ahha

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Your channel is so helpful to me in my studies and also i can understand very well what you are teaching. So upload more videos in GSCE syllabus.

[@crazybonkerz881]

this was rly useful thx