At 23:00, I used the model V = Ae^-kt and it gave me the same answer for part b(ii). My model is different to yours so I don't know why I still got the right answer, did I do something wrong? I'm a bit confused
Nah you're good. If you think about it, you can rewrite e^-kt as (e^k)^-t. But e^k is just a constant (e) to the power of another constant (k), so surely that is just a constant? I could therefore set b = e^k and we'd get the same answer 👌
@@AITutor Ahh that makes sense, thanks. Btw would you be able to privately go over solutions for autumn 2020 papers? (I understand you can't release to public atm)
This video deserves WAY more attention!
Can you do mock paper 2020
Hi, great video!
For question 6bi, do you need a negative sign in front of the t in the exponent?
Where can I find this exam ?!
thank you so much, very helpful
come back!
question 13 [a] you forgot to add yn-1 in the trapezium rule formula
Chigga it doesn’t matter bro the formula is in the booklet anyway
At 23:00, I used the model V = Ae^-kt and it gave me the same answer for part b(ii). My model is different to yours so I don't know why I still got the right answer, did I do something wrong? I'm a bit confused
Nah you're good. If you think about it, you can rewrite e^-kt as (e^k)^-t. But e^k is just a constant (e) to the power of another constant (k), so surely that is just a constant? I could therefore set b = e^k and we'd get the same answer 👌
@@AITutor Ahh that makes sense, thanks. Btw would you be able to privately go over solutions for autumn 2020 papers? (I understand you can't release to public atm)