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: th-cam.com/video/7Isa4P8lISc/w-d-xo.html The nth term of a geometric sequence is beyond the GCSE course however.
Can you make a video for percentage growth and decay I’m struggling with it a lot and simple and compound interest
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.
You actually did it, thank you sir ❤
Of course! I said it was on the list, I am just working through :)
thanks :D
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 👍
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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: th-cam.com/video/7Isa4P8lISc/w-d-xo.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!!!!
thanks for your videos, I got an 8 in maths
Amazing well done!