<p>i think choice II was that it was parallel to the other two planes which we all have agreeed is false. and choice III i think was that the plane intersected exactly one of the two planes, which i thought was false. i dont remember I but i thought it was true</p>
<p>Hey, are we officially “allowed” to talk about MC yet or ever? I might want to ask my math teacher one of them, but not sure if im allowed?</p>
<p>i dont remember what i put. if i could get the exact wording, even with different labels for the planes and lines, i could probably remember. this is bugging me now</p>
<p>Wasn’t the question with root 2 and root 3 as zeros incorrect? If root 2 is a zero then its conjugate negative root 2 is also a zero and the same goes for root 3. So the equation with those zeros would have to be quartic, not quadratic.</p>
<p>can someone compile? also does it change the answer if theres a restriction?</p>
<p>what was the letter choice for #50 if it was II and III?</p>
<p>@subsidize it was in the format x^2+x+c or something, so the conjugate wouldnt work because theres a first degree x term</p>
<p>Do we have a consensus on #50 that it was II and III? If so what did II say? because I know III is right.</p>
<p>i dont think theres much of a consensus on that one, nobody really remembers it</p>
<p>2 was most definitely wrong and why is 3 right. do u remember? if so, enlighten us please :)</p>
<p>I think three said that a different plane intersected either M or N but not both. Becuase the question said that the “different plane” didn’t intersect the first line that intersected M or N.</p>
<p>wasnt there one about all three being parallel that was false?</p>
<p>@alex the problem with that is that planes go on forever so the plane had to intersect BOTH M and N since it was parallel to line r (M and N both intersected line r)</p>
<p>For the last question, you had to be REALLY good at 3-d visualizations. (I left it blank).</p>
<p>Wait did the problem say line r is where the first two planes interesect? or that line R intersects the first two planes?</p>
<p>it didnt give any locations. it just said that line R intersected both planes M and N but did not intersect the other plane the question asked about</p>
<p>Can ANYONE confirm any part of the question or answer choices? if we could have a few people confirm each part, we can look at the entire question rather than what we might remember</p>
<p>But if an irrational number is a root of an equation then its conjugate must also be a root.</p>
<p>thats for IMAGINARY numbers</p>
<p>Subsidize:</p>
<p>I’m not sure that’s always true. What about a double root that’s irrational?</p>