You don't need to know this for GCSE, only how to generate more terms. It is covered more explicitly at A-level. That said it isn't too tricky. Each geometric sequence has a first term, which we give the letter "a". It also has a common ratio "r", which is what you multiply each term by to get the next term. You can find "r" by dividing a term by the previous term. E.g. if the sequence is 3, 6, 12, 24, 48, ... a = 3 as it is the first term r = 2 as 6/3 = 2, or 12/6 = 2, or 24/12 = 2 etc. The nth term is this a * r^(n-1) so in this example 3 * 2^(n-1) Hope that helps but I will cover A-Level content in the future.
You can. I have a video on nth term of quadratics sequences here: ua-cam.com/video/7Isa4P8lISc/v-deo.html The nth term of a geometric sequence is beyond the GCSE course however.
You actually did it, thank you sir ❤
Of course! I said it was on the list, I am just working through :)
Hello sir could please do a video on Locus and mesuration✔
Will you make a video explaining how to get the nth term of geometric sequence .
You don't need to know this for GCSE, only how to generate more terms. It is covered more explicitly at A-level.
That said it isn't too tricky. Each geometric sequence has a first term, which we give the letter "a".
It also has a common ratio "r", which is what you multiply each term by to get the next term. You can find "r" by dividing a term by the previous term.
E.g. if the sequence is 3, 6, 12, 24, 48, ...
a = 3 as it is the first term
r = 2 as 6/3 = 2, or 12/6 = 2, or 24/12 = 2 etc.
The nth term is this a * r^(n-1)
so in this example 3 * 2^(n-1)
Hope that helps but I will cover A-Level content in the future.
Can you make a video for percentage growth and decay I’m struggling with it a lot and simple and compound interest
If you go on first class maths on google you press GCSEs revision (your examboard) then you can find your topic
my math checkpoints are today and this video was helpful for revision thank you so much!
Hope it went ok.
thanks :D
I found it VERY useful. Thanks ❤
You're welcome 😊
Sir could you plz do all of algebra and geometry foundation tier
I am working my way through all the foundation topics don't worry.
@@1stClassMaths 👍
thanks for your videos, I got an 8 in maths
Amazing well done!
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💙💙💙
hello i have a question. So you cannot create formula for the nth termin both geometric and quadratic sequence ?
You can. I have a video on nth term of quadratics sequences here: ua-cam.com/video/7Isa4P8lISc/v-deo.html
The nth term of a geometric sequence is beyond the GCSE course however.
Can someone please tell whether Fibonacci sequence is included in the IGCSE syllabus
I don't believe it is.
@@1stClassMaths thanks a lot!!!!
My all confusion is far away