<p>oh I just checked and it probably doesn't :(</p>
<p>(and those are determined by the curve so they're pretty much useless.. nevermind >_>)</p>
<p>anyone have the link to the June thread?</p>
<p>The link is here:</p>
<p>I found this test to be a joke compared to any of the practice tests I have taken. I finished in 35 minutes and I don't think I got any wrong.</p>
<p>I asked a friend who took the June test and he said there was a problem with an open box or sth and a graph asking you to identify the equation and the answer was tangetn sth... but obviously we didn't have those questions...hmm</p>
<p>I'm 100% sure it was the same test.</p>
<p>Answers of |tan2x| was Pi/4. When ever we take absolute value of a Trig function, period get halved- I don't know why, my instructor told me so i mugged it up:)</p>
<p>Does anyone knows what was the curve for June Test?</p>
<p>Abhi, the answer to the "period of the |tan(2x)|" question was most definitely pi/2. What your instructor told you about halving the period when the function is surrounded by absolute value signs is false. When you take the absolute value, you are essentially reflecting what would have been negative values of y over the x-axis. But in the case of |tan(2x)|, these reflected values are still part of the same period as those of the corresponding x-values on the tan(2x) function. The period is the same as tan(2x).</p>
<p>And for future reference, always make sure you understand a mathematical principle before you attempt to apply it. In your case, not only was the principle false, but you gullibly accepted it and attempted to apply it without understanding why the principle "works." This does not lead to good results.</p>
<p>I am 100% sure it's pi/4.
Let's say we have a graph of tanx- It's period would be Pi.
Now reflect the part in 3rd quadrant to 2nd quadrant about -ve X axis- That's the graph of |tanX|
This graph repeats after each pi/2.</p>
<p>yeah but if you graph if it...</p>
<p>lobgent: Chill, dude. It's just a stupid question from a stupid test.</p>
<p>I guess what said goes with Sin and Cos only.
<a href="http://www.math.hawaii.edu/lab/241/online-grapher.shtml%5B/url%5D">http://www.math.hawaii.edu/lab/241/online-grapher.shtml</a>
Period got halved when i entered abs(Sin(x)).</p>
<p>heated math debate....where else but CC :p</p>
<p>what number was the question?? and what was the answer?? E?? (the one with the 3 numbers)</p>
<p>i think i got about 6 wrong. No omits. Is that enuff to get me a 800??</p>
<p>if your lucky, but probably not</p>
<p>Would they cancel our scores for this time if we took the June '06 test? Funny thing is that I realized it was the same test AFTER I took it :S</p>
<p>I doubt it--you just got lucky (well, if you had known it was the same test and had some recollection of it). I'm not too worried about this for math, but now I feel a little apprehensive about this happening on a test with a harder curve--the curve would just be even sharper since some people would be retaking the same test they took the first time.</p>
<p>Wait so you think the curve will be affected by this test being a repeat?</p>
<p>maybe they'll average the two curves and use that</p>