<p>Also, I know that this thread is primarily for SAT prep, but does/did anyone have/had AP Cal AB/BC that knows how to do chain rule for differentiation? I’ve tried and tried, but it’s still confusing to me.</p>
<p>Chain rule for differentiation: just take the derivative of the outer function, then inner function. Always work from outside to inside. </p>
<p>Take the derivative of 3(x+2)^3</p>
<p>The outside function is the exponential. Multiplicative constants are ignored. </p>
<p>3(3)(x+2)^2</p>
<p>Take the derivative of the inner function, (x+2)</p>
<p>3(3)(1)(x+2)^2</p>
<p>= 9(x+2)^2</p>
<hr>
<p>Let’s try something more complex. </p>
<p>Take the derivative of e^(x^3)</p>
<p>The outer function is x^3. The inner function is e^(exponential). The derivative of e^x returns itself because the derivative of the function x is one, so taking the derivative of e^x results in 1 times e^x. </p>
<p>Therefore, the solution is: </p>
<p>(3x^2)(e^(x^3))</p>
<p>Thanks IceQube. I understand stuff like this, but when I’m supposed to apply chain rule and then quotient rule, I get rather lost in the steps. I tend to understand the stuff after a bit of practice, then three or so hours later, I forget. I guess I’ll have to keep practicing. Test tomorrow, so I’m quite nervous.</p>
<p>Update: just got home, an am very, very tired. I procrastinated somewhat throughout the week, which came back to bite me. I studied a few hours for a Calc test, which I most likely failed. I’m almost certain that I made like a 50. I dislike the chain rule with a passion. Anyways, I’m about to eat and sleep for a few hours. I plan on doing a few sections today. I will definitely fit in the essay and writhing mc today.</p>
<p>Did 1 Dr. Chung’s math test today, I’m probably gonna do another one later.
For right now, I am editing my Brag Sheet for my teacher recs…</p>
<p>Sighs. a couple weeks left.</p>
<p>About to take a full length practice test. I’ll update with score break down in a a few hours.</p>
<p>Weekend, time to go hard with my barely touched Barron book.</p>
<p>I just finished a full length practice test. I’m kind of scared to grade it. I’ll grade it in a bit. I’m going read some more direct hits and try to develop a legit essay format by following the 12 essay in 10 days format, but adding my own twist.</p>
<p>Eh, I got a crappy 1940. I think I was being too generous assuming that my essay is worthy of an 11 or 12. Overall, I’m shy of a 1900 or whatever if I have a tough essay grader.</p>
<p>Good luck haphazard. you’re close, i’m in the same boat as you, except I’m almost touching the 2000’s.</p>
<p>2 weeks left, just to put it into perspective. Got to have my game face on and not slack off.</p>
<p>let’s go.</p>
<p>Wow…this thread is intense. I’m a junior and taking the oct. SAT…I’ve been practicing like crazy. That’s what I did this summer- SAT courses & at least 5-6 hrs a day studying. Any tips?</p>
<p>Might pull all nighter to study SAT and AP Physics. </p>
<p>Time is running out and I haven’t even reached halfway of the Barron’s book.</p>
<p><em>eyeroll</em></p>
<p>Good luck with your hyperobsessive pursuit of a meaningless number.</p>
<p>^ Hey, it’s an important meaningless number.</p>
<p>This number may seem meaningless, but this number is one of the major factors when applying to the school I want to go to. I’m just afraid that I won’t reach it. There isn’t much time left. I have hardly improved. My CR fluctuates and my math score sucks. There’s no point complaining about it. Well, gonna get back to practice. I’ll probably go back and forth between practice and working on college apps.</p>
<p>Don’t give up just yet man, work hard till the end. I’m right behind you</p>
<p>GL man, I am in the same situation as you. My math and reading scores are going up but my writing scores keep fluctuating. However, I am not that worried about writing since it’s the easiest to improve on.</p>
<p>Hey guys, I’m new to this post and prepping for sat in october as well. So far im around a 2020, my CR sucks. Its great to have a group like this going on for motivation and help.</p>
<p>Sorry I haven’t been around much guys, school has been insane. Hope things are going well!
My CR seems to be improving a little (700+ ish) and my math is a tiny bit better, but I still miss all 6 of the hard problems on each section… At least I’ve reviewed the basics like properties of exponents and stuff which I figure comes down to about 2 questions per section, so better than before but still way off the 650 I’m reaching towards… I’m also struggling in math at school, surprise surprise. Thank goodness for online tutorials.</p>
<p>As for writing I’m really starting to get the essay down! It’s honestly all about practice, at least in my case. Still need to add a few more examples into my mental library, though. </p>
<p>I’ve been blocking off most of my saturdays for exclusive SAT study, which is what works for my schedule. Once we get into October I’ll start doing full length practice tests once a week and definitely daily prep. Soooo glad I’m signed up for the november test (btw did you guys know most schools accept november score reports even for EA/ED? I’m just doing regular, but in case you decide to take it again thought it might be comforting to know).
Good luck, you’re all so committed I know you can do it, and if by some reason you don’t you gave it your all. Plus ‘dream schools’ aren’t all they’re cracked up to be and you get what you take out of any experience. Good studying!</p>
<p>I read sparknotes 7 deadly errors for writing today. I also read a fellow CCer’s guide for CR. I believe he/she exemplifies how correct answers are usually more general and synonymous with the text. I took a CR practice section. I missed 6 questions - broken down - I missed 3 sentence completions and 3 passage based questions. I did the first 9 tips in Dr. Chung’s. Finally, I created a template for the essay. However, I have yet to research my 15 or so examples. School tomorrow, so I’m going to sleep. I’m planning on hitting the books quite “hard” these next few weeks. Maybe I can follow in the footsteps of an old CCer who raised his SAT score nearly 350 points in 10 days.</p>