<p>This question seemed a bit convoluted to me...something that ought to have been on an AP exam and not an SAT.</p>
<p>sin A=x^2 What is sin 2A?</p>
<p>I ended up getting (2x^2)((1-x^4)^.5) but used calculus to do so (supposedly not required).</p>
<p>Also, the problem that asked what the maximum value of the product of 2-sin x and 3+cos 5 x could not possibly be solved (to my knowledge) without either: (a) a graphing calculator or (b) niggling trigonometric derivitives...</p>
<p>Oh and also...how are people predicting there scores? Is there a chart based on raw score/scale score, roughly? I would like to see this chart.</p>
<p>Ouch. That seems right Chandra. Scores are being predicted based on past conversion tables. There is one here, though not official. It's close though:
<a href="http://www.sparknotes.com/testprep/books/sat2/math2c/chapter2section4.rhtml%5B/url%5D">http://www.sparknotes.com/testprep/books/sat2/math2c/chapter2section4.rhtml</a></p>
<p>yay looks like i got everything right so far...BUT...</p>
<p>what was the answer for the amount of arrangements of five different things in groups of threes and fours? and what was the answer where a^2 + b^2 = 12.85 and ab =5.85, find (a+b)^2? the latter was the only one i skipped.</p>
<p>15 and 24.55, respectively.</p>
<p>umm (a+b)^2 = a^2 + 2ab + b^2 so just plug in i guess</p>
<p>Koax: do you remember the letter answer(a, ,b, c, d, e) for number 50?</p>
<p>I want to say b... Such a damned bloody question. Fortunately it was the only one with 2x^2 as a numerator, so it was possible to make an educated guess.</p>
<p>I think the answer Koax gave for 50 was A.</p>
<p>Skipped 10+ and not expecting a good score at all.</p>
<p>Does anyone know a technique for solving the trigonometric product question besides graphing it on a calculator (I lost my calculator eons ago and had to use a scientific calculator. It was the only question I omitted)</p>
<p>OH! I love, love, love this chart. I don't know how accurate it is...but if I omitted 13, and say, got 8 wrong (I have no Idea how many I got wrong). That's a 650, I think! I'm ok with that!</p>
<p>Also, what was the question for 50?</p>
<p>lol my friend took it w/o a calculator and he skipped like 10</p>
<p>i left bout 8 questions.. including the man and woman distance thingy and that intersection of planes question.
i got i/pi for some question any one remember that??.. also got 37.5 for taht cylinder question.. and even 3/20 for that car probability thingy.. can any1tell if these r rite..?</p>
<p>Your friend is a lackwit. This really irks me! The bloody test description says that you needn't necessarily use a graphing calculator.</p>
<p>also is that sq.root of t and t question a part of a parabola..??</p>
<p>Definitely</p>
<p>"i got i/pi for some question any one remember that??.. also got 37.5 for taht cylinder question.. and even 3/20 for that car probability thingy.. can any1tell if these r rite..?"</p>
<p>1/pi is right (frequency = 1/period, period=pi), 37.5 is right, and for the car one, I don't remember... I think I put 3/10.</p>
<p>umm...i got 30 for the cylinder thingy...</p>
<p>thanks nervous... 3/10.. how???</p>