AP Calc Exam: 2 Days to Go! (2024 Edition)
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- Опубликовано: 12 сен 2024
- My one week to go review video: • AP Calc Exam: One Week...
All of my review videos for AB: • AP Calculus Review Vid...
All of my review videos for BC: • AP Calculus Review Vid...
All of my FRQ videos: • AP Calculus Free Respo...
In this video I cover four last minute things that I noticed my students often get wrong while doing practice. Topics are:
[00:14] Derivative of the inverse function at a point.
[03:45] Riemann sums in multiple choice problems.
[07:58] Volume with known cross sections.
[13:58] Limit definition of the derivative.
Good luck on the AP exam everybody!
#apcalculusbc #apcalculusab #apcalculus
so clutch I’ve never seen the inverse thing up until now even having done several old MCQs
Nice. It’s not guaranteed to be on the exam, but in my experience there’s usually either 1 mcq or one part of an frq. And every point counts! Good luck!
NAH this is literally everything I need to review 😭😭tysm
Welcome! Good luck!
the five is in sight
Not for me lol
@@trnstdev2958sameee atp i just want a 3 at least 😭
hell yeah
@@trnstdev2958we're in the same boat
been getting comfortable 5s on practice, hopefully exam tmrw isn't absurdly hard for no reason
watching this the morning of my exam, thanks so much bro you’re the goat
Just wanted to stop by and say thanks -- I got a 5 on AB last year after practicing countless FRQs and MCQs (a lot of them with your vids) and hopefully will do equally as well on BC this year.
good luck! hope you get that 5!
I discovered your channel on the bounded area unit. The way you teach makes a lot of sense, thank you for making these concepts really easy to understand. Good luck to everyone on the AP exam!
Turksvids has carried me through all of my Calc Bc FRQ and MCQ review. This guy has single handedly carried all AP calc students.
Good luck!
Definitely wishing everyone a 5 on this thing!
Hey! I just wanted to say thank you!!! I felt so confident during the exam because of your videos! Thank you for being so detailed with your responses, it truly helped me prepare!! Thank you once again!!!
love to hear it! happy the exam went well for you!
Can you make like an hour long review on stuff you need to know quickly before the ap calc ab exam like essential stuff
I agree!!!!
I LOVE YOU TURKSVIDS 🖤this was super helpful for calming my nerves before tomorrow
Thank you so much for all these videos, they helped me get a 5 on my exam thank you so much.
yea didn't know abt the semicircle cross section thanks
Definitely a good one to know shows up on FRQs from time to time. Good luck!
@@turksvids for the cross section of a rectangle, is it not integral [a,b] (k*s) dx? as opposed to k*s*s, wherein we'd multiply base twice which doesn't follow the area formula for rectangle b*h?
TSYM ❤️ these questions are literally the exact problems I can never find review on and need to most help with 😭😭
Thanks so much man this was so helpful. Im going for that 5 💪
best of luck!
So nervous for the exam but this video helped a lot. Especially that inverse parts. Best of luck to everyone on the exam?
spent past month reviewing. hopefully a 5!
Hi Turksvids! Thank you so much for these videos-they are a great refresher! From your experience, can we trust online score calculators such as the one from Albert? I know the 5 thresholds for the bc exam vary each year, but I want to reassure myself about what I need to score to get a 5. My biggest concerns are the polar and sequences and series FRQs because they are my biggest struggles
Thank you!! Would you also happen to have a video on related rates though? That topic still confuses me so much..
Nothing super concise, but a lot of videos:
www.youtube.com/@turksvids/search?query=related%20rates
Hi! Im currently preparing for my exam on Monday and appreciate you making this helpful video. I’m just curious if you could explain why the volume of a semicircle equals pi over 8 times the integral when the formula of a semicircle is 1/2 *pi*r^2.
(this assumes there are two curves bounding the region...) The diameter is in the plane, so the diameter would be s = (f(x)-g(x)) or (top - bottom). That makes the radius s/2. The area of a circle is pi*r^2, so pi*(s/2)^2 = pi*s^2/4. But then you only want half of the circle, so you get pi*s^2/8. hope this helps! definitely memorize that and just remember if the cross sections are semi-circles, you use pi/8 as the coefficient.
good luck!
@@turksvids thank you!
Ur a real one, bouta lock in for tmr
thank you bro this really came in clutch fr
thanks turk
Thank you so much
I'm still confused why the answer to the 1988 BC practice problem isn't A. 😅
I was solving rhe questions along with the video like: Hmm.. I don't remember studying that but I'll note it down... Until i had completed hqlf of the video and i realized im a precalculus student. I have exam in an hour.
Saved my life
another way to do def of derivative is just to lhoptial it. usually it works
Yup. Just make sure to note what the variable is.
35 minutes left for the exam, am I a little bit late?
We all cookin it
wait you took the test in 1997?? i thought you were like 20 years old by your voice
...yeah, i've been around a while
good luck you all!
ily dude thank u
As long as I get a three I’ll be happy
Good luck everyone, I might be the first to get a 0 on calc AB😅
do you think the series will cover the majority of the exam this year? i’m kinda scared abt unit 10 so i'll focus heavily on it until the exam
Unit 10 is 17-18% of the exam, according to College Board, so it's a lot for sure.
Series FRQs: ruclips.net/p/PL6iwkLfBjZiwheTEUA-N7ujqhLZiTVwvZ
Series MCQs:
ruclips.net/p/PL6iwkLfBjZiyqUTZEzhT1fkU4XDwnfuRJ
Good luck! Please share with your friends/classmates!
HOWD YK F(X) WAS SQUARE ROOT OF X?
do you have comprehensive reviews for each unit?
This is exactly everything that i was confused about lol
you're in good company! good luck on the exam!
Thank so much, this was all I need, I just want to ask how much percentage do we need to get a 5 for calculus bc this year😅
Hey I also have another question...
I use the ivt and my justification is:
r(t) is a twice diff func therefore r'(t) is diff therefore r'(t) is cont
By IVT there must be an m on the interval 0
The only thing I'd add is you should say something like r'(0) < -6 and r'(3)>-6 (or vice versa) before making the conclusion, otherwise looking good--assuming you meant r'(m).
damn this video made me feel like I dont deserve a 5, literally wasn't able to solve most of the questions here especially the right Rieman sum , i didn't even knows its series existed in AB. Anyways, can you please tell me why a semi-circle is pi/8 x the integral? isnt it half a circle so 1/2pi?
keep in mind that this video is specifically about things my current students are still occasionally messing up. i expect basically all of them will get 5s pretty easily, so these are kind of objectively tricky things. there are probably 35-40 multiple choice per year that are quite straight forward if you know your stuff. the Riemann sum thing shows up on multiple choice sometimes (obviously, since i pulled examples from old tests), but it's never more than one question out of 45, so not a big deal. here's an explanation that i gave in another comment somewhere the other day about the semicircles (definitely just memorize it, though):
(this assumes there are two curves bounding the region...) The diameter is in the plane, so the diameter would be s = (f(x)-g(x)) or (top - bottom). That makes the radius s/2. The area of a circle is pi*r^2, so pi*(s/2)^2 = pi*s^2/4. But then you only want half of the circle, so you get pi*s^2/8. hope this helps! definitely memorize that and just remember if the cross sections are semi-circles, you use pi/8 as the coefficient.
@@turksvids I am also self studying so thats a downside. Anyways, I really wanted to thank you for your efforts. Wish you the best!
This is what you want when you are studying! You are amazing turksvids
Thanks! Hope everyone gets the score they’re looking for!
Tomorrow we have the exam🌚
How do you know it’s not sqrt of x/50 for 24 (answer choice c)? 5:56
if it's that then the bounds of the integral also have to work.
Are you going to have a live session on 05/012 ?
turns out i don't know how to do that so not this year...won't help you but going to consider it for next year, for sure! good luck on the exam!
A question about how to find the slope by rise over run
Hey turks vids. I was doing the 2019 and 2018 frqs and I always end up using average rate of change instead or average value. How do we know when to use average value? I find it hard to know when
Average rate of change will basically always use those exact words. Average value will almost always just say “find the average __________” where the blank is the output of some function in the problem. So it might be temp, weight, amount of rain, height, etc. hope this helps!
DONT FORGET TO CHARGE YOUR CALCS GUYS
Do you think for bc there will be a polar problem #2 or parametric #2 bc the last couple years it's been all parametric but I don't wanna do polar 😭😭
50/50 shot. They actually do put polar on it every year, pretty much, they just (annoyingly) only release one set of FRQs per year. (Which does save me hours of work since I don’t have to make videos for them!)
I still dont get the inverse functions. Why do we set g prime = 1 over f prime?
There’s a proof and all but I’d say in the next two days memorizing it seems like a better use of time. (Proof is really just the chain rule on g(f(x)) = x gives g’(f(x))*f’(x)=1 and say x=a so f(a)=b, g’(b)=1/f’(a) and you’re done)
e^2 is a constant tho
goat
Hey so on 4d of 2022 can I leave my answer as 2/3pi(100)(-5) etc etc instead of simplifying it to - 70000pi/3 ?
definitely. actually don't simplify. it's risky and you get points once you get to where you got and then lose the point if you simplify wrong. it's like my worst habit when i make videos that i simplify all the time.
do you have any tips for saving time on mcq no calc + tips for getting points on frqs when you don't know how to get the answer
For frqs u don’t know and u wanna give up try to go for setup points
I’m cooked
real
procrastinated reviewing til yesterday... might b cooked yall
I took it online and I didn't have a teacher and right now I'm feeling so stressed and behind. I don't remember most complex things like volume, area, related rates, or problems that are word problems. I've taken practice tests and I haven't done well and FRQ scare me and I don't do well. What should I do?
I wish you’d found my channel sooner, but I definitely recommend you start grinding FRQs: AP Calculus Free Response Questions
ruclips.net/p/PLA83584C88AB6F0AE
I have them sorted by topic into playlists if you look around on my channel as well.
@@turksvids Thank you so much! I'm gonna watch that now and start looking, I may come back later with more questions and seeking more advice lol :)
These are the videos I highlight as review worthy: AP Calculus Review Videos (Calc AB)
ruclips.net/p/PL6iwkLfBjZiw2H9tmA1vW9a93_eJy6bLb
@@turksvids Okay so does watching every video tmrw at like 1.25x speed and working thru problems before you solve each of them sound like a good plan? And then after go to the FRQ videos and try to apply it conceptually? (I also have extreme adhd so its hard for me to focus but I gotta lock in)
Hi my friend iam doing ap calc ab aswell this exam means alot for me do you think that there will be related rates on the frq?
Related rates on the frq always feels more like chain rule to me. Shows up as part of the volume problem or the diff eq from time to time now. I have a playlist of related rates FRQs somewhere if you want to dig in. AB Calculus Related Rates Free Response Questions
ruclips.net/p/PL6iwkLfBjZiye_FuKHypc8XpYXlyrvUF8
@@turksvids that is a good one iam not bad with that but will definitely check it I mean like cylinder and big volumes and stuff like a whole separate question for related rates will it come on this Monday frq?
I’d bet there won’t be, but they often surprise me.
@@turksvids thanks man wish me good luck man this exam is a very important switch in my academic life and thanks for your vids they are very helpful keep up the hardwork best of luck with the rest of your career
Turk I really really need your help there a question i did last year in ab calc that I am confused about , this is the question,
Dp/Dt=p×0.02cos(pi/30(t+10)), with the initial condition p(50)=15 ,they need the particular solution ,can you please give me its answer with steps please😭 I got my answer 15e to the power of 30/pi times 0.02times sin(pi/30(t+10)) is that correct???
That looks right to me!
@@turksvids you sure cause there is someone who solved it to Me and got another answer
yeah, i'm pretty sure.
@@turksvids the thing that confused me that I get c=15 but if I raised it to e and added it to the other variable I won't get the same answer , we can't raise it to the power e ? Is it because it is not e^15?
Hopefully 3
fingers crossed for you if that's your goal!
i feel like i should b paying u for this
Its jover for me bro..
Might be cooked
Kanal türk mü
evet yerli malı oh oh
hello, a little question, are you turkish?
nah, just part of my last name is turk!
@@turksvids alright! Also, thank you for your videos! I've been using all your videos to prepeare for this years AP Calc BC exam haha!
Rest assured this did not help at all❤
well that makes me sad...my students thought some of it was pretty clutch.
@@turksvids I was just salty because the FRQ was really hard lol. This was a very informative video! Don’t be upset
oh my god wait youre that reddit guy
i guess that's one way to look at it
all these people talking about 5s, man i’m gonna be lucky if i get a 3 😭
I hope you get whatever score you’re aiming for!
goat