<p>how much conics do we need to know? i’m most worried about those…</p>
<p>Everyone I have to disagree. I think Sparknotes Math II is much easier…the real Collegeboard Exam is much more conceptual<i> and has much more esoteric problems.</i></p><i>
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<p>I got 1 800 on pc and 770 and 790 on barrons… and i thought i had chance to get 800s too…so seems like sat ii math 2 isnt too hard…
so i did research, and it shows that 90% ppl get 750+ in math 2…so does sat ii score really matter? since so many peoplecan do very well…</p>
<p>and good luck every one… test on saturday!</p>
<p>sat II’s do not matter that much, but colleges need atleast some standard to test your ability in math other than the SAT math section. </p>
<p>But if you get anything less than 800, it reflects poorly upon you.</p>
<p>who knows any good calculator programs for the test?</p>
<p>Personally, I’ve been doing Barron’s test prep (anyone actually know HOW much harder it is) and have found quadratic, law of sines, cosines, and herons pretty handy.</p>
<p>I’m having so many time management errors. i had to use an extra 15 minutes but i did get a 750 on barrons…Tips? and how crunched for time is it on the real exam?</p>
<p>I get 720-740s on Barrons… am I guaranteed at least a 780+?</p>
<p>How are you all doing on time? I’m having a hard time finishing all 50 problems within an hour. Also, how does Princeton Review compare to the real thing?</p>
<p>Tips to remember:
- Law of sines –> sin a/A = sin b/B = sin c/C
- Law of cosines –> c^2 = a^2 + b^2 - 2(a)(b)cosx
- (Long diagonal of a rectangular prism)^2 = (length)^2 + (width)^2 + (height)^2</p>
<p>Good luck to everyone! :)</p>
<p>I got an 800 on the Barrons test, so I’m not too worried. The trick I use to save time is literally use my calculator for every problem I can. It really saves time. Rather than write something out on paper, just punch it into your calculator. Plus I’m constantly texting and typing stuff up, so it also makes putting stuff into my calculator much quicker. :)</p>
<p>Just keep practicing, and don’t stress out too much!!</p>
<p>And AmbitiousEfforts, I suggest you remember the law of sines as A/sin a = B/sin b = C/sin c = 2R, because then you can have the 2R in there, where R is the circumradius. Just a little more conventional, but it really makes no difference.</p>
<p>Can we get a general list of good things to program in going?</p>
<ul>
<li>Law of sines -> sin a/A = sin b/B = sin c/C</li>
<li>Law of cosines -> c^2 = a^2 + b^2 -2(a)(b)cos C</li>
<li>Long diagonal of a rectangular prism -> D^2 = L^2 + w^2 + h^2</li>
<li>Quadratic formula - > [-b +/- sqrt (b^2 - 4ac)] / (2a)</li>
<li>Sum of roots of a quadratic -> -b/a</li>
<li>Product of roots -> c/a</li>
<li>Even functions have the same y values on left and right. F(x) = F(-x)</li>
<li>Odd functions have opposite y values on left and right. F(x) = -F(x)</li>
<li>Trig Identities (can someone else do these, I’m a little shaky) -> Sin^2(x)+Cos^2(x)=1</li>
<li>Permutations -> nPr = n!/(n-r)!</li>
<li>Combinations -> nCr = n!/r!(n-r)!</li>
<li>nth term of an arithmetic sequence -> a[n] = a[1] + (n-1)d</li>
<li>nth term of a geometric sequence -> g[n] = g[1] * r^(n-1)</li>
<li>sum of an arithmetic sequence -> ((a[1]+a[n])n)/2</li>
<li>sum of a geometric sequence -> (g[1]*(1-r^n))/(1-r)</li>
<li>sum of an infinite geometric sequence -> g[1]/1-r for -1<r<1 or else infinity.</li>
</ul>
<p>needed: additional geometry, additional trigonometry, additional probability, and some miscellaneous.</p>
<p>oh btdubs, if you have a ti 84/83, it should have the conics equations preprogrammed ;-)</p>
<p>Trig Identities…</p>
<p>sin^2(x) + cox^2(x) = 1
tan^2(x) + 1 = sec^2(x)
cot^2(x) + 1 = csc^2(x)</p>
<p>Trig formulas…
sin(2x) = 2sin(x)cos(x)
cos(2x) = cos^2(x) - sin^2(x)</p>
<p>I am studying for the Math level2 test with barrons and the answer explanations for some questions refer to calclulator programs. Where in the book are the programs?</p>
<ul>
<li>Law of sines -> sin a/A = sin b/B = sin c/C</li>
<li>Law of cosines -> c^2 = a^2 + b^2 -2(a)(b)cos C</li>
<li>Long diagonal of a rectangular prism -> D^2 = L^2 + w^2 + h^2</li>
<li>Quadratic formula - > [-b +/- sqrt (b^2 - 4ac)] / (2a)</li>
<li>Sum of roots of a quadratic -> -b/a</li>
<li>Product of roots -> c/a</li>
<li>Even functions have the same y values on left and right. F(x) = F(-x)</li>
<li>Odd functions have opposite y values on left and right. F(x) = -F(x)</li>
<li>Trig Identities -> Sin^2(x)+Cos^2(x)=1
-> tan^2(x) + 1 = sec^2(x)
-> cot^2(x) + 1 = csc^2(x)</li>
<li>Double angle formulas -> sin(2x) = 2sin(x)cos(x), cos(2x) = cos^2(x) - sin^2(x)</li>
<li>Half angle formulas -> sin(.5x) = +/- sqrt((1-cosx)/2), cos(.5x) = +/- sqrt((1+cosx)/2), tan(.5x) = +/- sqrt((1-cosx)/(1+cosx))</li>
<li>Permutations -> nPr = n!/(n-r)!</li>
<li>Combinations -> nCr = n!/r!(n-r)!</li>
<li>nth term of an arithmetic sequence -> a[n] = a[1] + (n-1)d</li>
<li>nth term of a geometric sequence -> g[n] = g[1] * r^(n-1)</li>
<li>sum of an arithmetic sequence -> ((a[1]+a[n])n)/2</li>
<li>sum of a geometric sequence -> (g[1]*(1-r^n))/(1-r)</li>
<li>sum of an infinite geometric sequence -> g[1]/1-r for -1<r<1 or else infinity.</li>
<li>The long diagonal of a cube inscribed in a sphere is equivalent to the diameter of the sphere.</li>
<li>The conversion between the long diagonal of a cube and the side of a cube -> s=d/sqrt(3)</li>
</ul>
<p>Soooo…how’s everyone doing? :P</p>
<p>So far: 750,770, 750 on sparknotes… :/</p>
<p>740, 760 barrons</p>
<p>700 690 760 sparknotes</p>
<p>sparknotes: 770, 760, 800, 800, 800</p>
<p>barrons: 750, 760 </p>
<p>i’m really hoping for an 800</p>
<p>@aznpride: yeah dude, you’re getting an 800 fosho.
me on the other hand… i keep on getting 680s… does that translate to an 800?</p>