***October 2013 - Mathematics Level 2***

<p>I wanted to start this thread for people to share anything useful and talk about the test before this Saturday. Which formulas would be best to memorize for this test besides diagonal for 3D objects is d = sqrt((x2 - x1)^2 + (y2 - y1)^2 + (z2 - z1)^2)?</p>

<p>Let me ask you this: Is that formula worth memorizing? It is basically Pythagorean theorem applied twice. Just take the difference in the coordinates and square them.</p>

<p>Oh, I guess we’ll take the discussion over here. Well it’s extremely easy to memorize, so yes it is worth it haha. I never said anything implying that I haven’t memorized it yet, but I was really asking about other, more difficult formulas to memorize that may save time or that aren’t covered in math courses</p>

<p>its not worth memorizing but its worth storing into your calculator as a program ;)</p>

<p>I can’t store things in my calculator, because I have a TI-84 Plus and the only TI-NSpire I have is CAS, which is banned.</p>

<p>Of course you can^. I took the IIC with my TI-84. For that equation, here’s a program for you:
DISTANCE
Disp “X1?”
Input X
Disp “Y1?”
Input Y
Disp “Z1?”
Input Z
Disp “X2?”
Input A
Disp “Y2?”
Input B
Disp “Z2?”
Input C
((A-X)^2+(B-Y)^2+(C-Z)^2)->D
sqrt(D)->W
If W=int(W)
Then
Disp W
Else
Disp “SQRT OF”
Disp D
Disp “OR”
Disp (W)
End</p>

<p>And you should store on your calculator the equations for the foci/other stuff like that!</p>

<p>Hope I get an 800 so I can be a true CCer lol.</p>

<p>Anyone taking physics as well? I’m thinking of making a thread for that test.</p>

<p>Oh ok thanks for telling me… Well which formulas should I store?</p>

<p>@AtypicalAsian Yes! I’m taking the SAT II Physics and I’m freaking out. Please make one.
@Matthew5 All of the conic stuff - I have ALL the equations stored and I did end up using them on the test. Parabolas/ellipse/hyperbolas/etc.</p>

<p>Man, the time it takes to type all those parameters in my calculator I could answer 4 questions. Don’t bother programming formulas. Just know them. There aren’t that many of them. Sometimes they even give you the formula in the question.</p>

<p>Thanks undefined. What did you end up getting on the test?</p>

<p>Good to see people who are taking the same test as me How are final preparations going, people?</p>

<p>Everyone go check this thread out for some good resources:
<a href=“http://talk.collegeconfidential.com/sat-subject-tests-preparation/760980-free-math-level-2-study-guide-student-who-scored-perfect-800-exam-2.html[/url]”>http://talk.collegeconfidential.com/sat-subject-tests-preparation/760980-free-math-level-2-study-guide-student-who-scored-perfect-800-exam-2.html&lt;/a&gt;&lt;/p&gt;

<p>Are McGraw Hill’s SAT Math 2 practice tests any good?</p>

<p>How strict are they with the photo on the ticket?</p>

<p>I think they are quite strict wih the photo.</p>

<p>What are you guys last reviewing for the test tomorrow? Probability? Trig?</p>

<p>@Matthew5 Know how to use your calculator. That’s really all.
TI-84 users, here’s something cool. Click Apps -> Conics. That will save you.</p>

<p>Look at few geometry and trig questions, these are more trickiest, esp shapes within shapes which apply both geom and trig in one problem.</p>

<p>are we allow to store formula into our calculator? such as parabola, ellipses and hyperbolas equations? i can’t memorize every them in detail.</p>