**Official June 2013 SAT II Math 2 Thread**

<p>A note here, this question was not to test Descarte’s rule of signs, but rather, the complex conjugate root theorem:</p>

<p>[Complex</a> conjugate root theorem - Wikipedia, the free encyclopedia](<a href=“http://en.wikipedia.org/wiki/Complex_conjugate_root_theorem]Complex”>Complex conjugate root theorem - Wikipedia)</p>

<p>Well, one can’t be sure what the College Board was actually testing; however, it is unlikely that it intended for the correct answer to be 0.</p>

<p>What did you guys put for the first question asking about distinct roots?</p>

<p>Zhuq</p>

<p>That letter is disgusting and you’re very misinformed. SAT curves are predetermined and are independent of scores distribution.</p>

<p>I got bpi as the answer to the tan question… Didn’t you have to set 2b equal to pi/2 and 3pi/2 and take the difference?</p>

<p>Yeah, I agree that that problem is ambiguous.</p>

<p>Trying to finish up the list :stuck_out_tongue:
There was that piecewise question, asking about f(2) - f(-2) or something. I think the answer was 4?
Also, there was that question saying x > 0 and y < 0, which of the following is possible for x + y? I think it was all three – it can be +, -, or 0.</p>

<p>crushroller, nice work</p>

<p>I remember both of the questions and I concur on those answers.</p>

<p>Agreed, got both of those. Is that all 50?</p>

<p>Oh gosh wow it’s just like Euler’s method</p>

<p>I’m in Calc BC and I was still horribly confused by that question</p>

<p>No, cuz we’re still not sure if 33 and 35 were even on the test.</p>

<p>There was a simple plug in question that I think we’re missing. Too bad my graphing calculator only has so much memory…</p>

<p>The inverse question does exist and the answer you have is correct. (9.375). But I don’t think the parametric equation answer was E. It was (x^2)/9+(y^2)/25=1, which i think was either C or D.</p>

<p>I know that one. That’s the light intensity one.
I was under the impression that there was one more.</p>

<p>I am fairly certain that a simple plug in one has an answer of 142.xx. Did anyone remember getting that?</p>

<p>I also vaguely remember a simple plug and chug exponent problem.
It was similar to something like.</p>

<p>A= B^(2x+1) What is X? I remember the answer being x=1.5. But no one remembers as well.</p>

<p>On my version, the answer to the parametric equation was E and wsa the same answer you listed above. Perhaps there are two versions.</p>

<p>I think the last two were the only ones with fractions, first had a + and second had a -, gonna go with D.</p>

<p>I feel like it was something squared. Oh yeah, it was like if t^3 is this number, then what is t^6?</p>

<p>Yeah it was definitely a “+”.</p>

<p>johnstucky!!
I actually remember a question like that.
Do you remember the answer?
Is it 142.xx or maybe 1.5? Or something completely different?</p>

<p>Yup thats it! If t^3 = 12.345, what is t^6?</p>