Hey man, AP scores came out today and I got a 4! I self-studied too! Your videos and Reddit post about self-studying AP calculus helped a ton, without it I probably wouldn’t have passed so thank you ❤️❤️❤️

Thanks for all your help, man. I got a 5 on AP Calc-BC

thanks a lot. really clear, with right to the point demonstrations. great explanation. great video

Great Explanation!

For Q15, I believe, the 6 should be included in the interval.

Hi. The unit circle has 5pi/4 listed twice. I think one of those should be 7pi/4. Thank you.

Doesn't the period affect the phase shift?

tysm, you explain it so well

In my junior year, I aced the frq portion thanks to your videos and got a 5 overall in the AP Calc BC exam. Now, I’m going back to review the same videos for my math placement exams this upcoming fall, you’re a 🐐 🙏

961.0845.47632

Thank you. I knew these were on my nspire, just had not used them. This is one of the reasons I got this calculator. Thing is, this is unwieldy compared to my old TI-85 and TI-86. I'm thinking about defining conversion constants, then enter 36in2ft or something similar to shorten the process. It would be nice to have a screen like the 85 or 86 and be able to complete the conversion in fewer keystrokes. Great instructional video. Great work. Thanks again. ☺

Appreciated 😊

they support devolution but they bring demolitions

You're honestly a life safer. So clear with every step and you broke down something very daunting into a bunch of simple steps.

3:36 "Really should've looked at a Pringle before I did this" Im crying

You have helped me so much!!!!! I Hope both sides of your pillow are cold when you go to sleep.

Thank you so much

Hi! now it's possible to solve the result like a differential equation and then get the function x^2-y^2=25 ?

I used the sentence from vieta to factorise. In this case: p*q=ac, p+q=b, p*q=-18, p+q=-3, 3*(-6)=-18, -6+3=-3 Then comes: 2x^2-6x+3x-9=2x*(x-3)+3*(x-3)=(x-3)*(2x+3)

idk if i will get an answer to this, but at 8:46 why did we use fxx and not fyy or fyx or fxy to find the sign? and is it always the case we have to use fxx? and is everytime fxx is bigger than 0 then its a local min?

W

You missed 2 in the denominator of limit comparison

@turksvids Why is there no weight conversion?

Been trying to figure this out all day, thank you.

I remember i lost 8 marks on my semester test because of this kind o question😢...but am excited to find the question again

Saved me on the calc AB exam tmr!!!

1:40

Thank you for coloring them correctly, I appreciate it.

thank you amazing explanation!

Turk my goat having the same answer for d fills me with confidence.

in part c if i remove the 1/2 from the right side of the equation and bring it outside does it still work ? 1/2 integral cos t/2 = 1/2 (sin t/2 + c)

why are you adding the inital condition to the integral of 8 to 0

The f(t) really threw me off on this one. Shouldnt it be f(x)?? Why the f(t)

Yes, the work is annoying! Thanks for breaking it down. This vid was very helpful.

Brooooo I thought part A's R area included the area under the x axis, so I added f and g

I think error bound is the one exception to not simplifying arithmetically or at least that’s what I’ve been noticing.

For part b, is it okay if we put that the integral represented the length of the curve of f(x) from x = 0 to x = pi? I dont know if we specifically had to mention arc length but I just mentioned the length of the curve

yessir full score

Here's a question: what if you just wrote log without the base 10? Would they penalize you?

your amazing! Please consider making tutorials and lectures

I’m so done. I literally used (0,40,000) and (0,76,000) instead of (0,40) and (0,76). That means that I literally missed all of frq #2.

For part c, I had everything you had but I was being stupid and thought sin(0) = 1. So I put 3/e as c and 3/e in the final equation. Do I still get any points for part c?

I’m a little surprised they asked you to write but don’t solve in part a, which is a really easy integral to evaluate, but they wanted you to setup and evaluate in part b.

it says that it remains in the first quadrant so surely specification isnt needed?

For part a if I put the integral from 0-2 of f(x) + the integral from 0-2 of the absolute value of g(x), will I get points? It still gives the same numerical value

oh i FLOPPED damnit

You Rock bro! I got a different form But I think hopefully I got a 5 thanks to you!!

Will they ever release form e

For part (c) there is a theorem that states the radius of convergence for f and f' are the same, but their interval of convergence could be different. Since the radius of convergence for f is 6 (given) then for f' it is also 6. I wonder if stating that would be sufficient for part (c) instead of using the ratio test.