<p>Sin & Cos graph shows that when x=90 / (pi/2)
sin(90) = 1
cos(90) = 0
thats how i interpreted the problem…</p>
<p>Exactly andisaid, and wingsreborn there is a hole in your logic if you believe a hypotenuse can be equal to a leg.</p>
<p>Uh…Wingsreborn you’re talking about an equilateral triangle, not right triangle.</p>
<p>fisawalab, you are correct. I have no idea what I was thinking. I think I marked it wrong for that reason, though.</p>
<p>what did you guys get for the line segment with the a line extending to point C? the question asked which statement described the angle measurements and it seemed like it could have been both the angles add up to 180 degrees and <ABC is less than 90 degrees. am i missing something very obvious?</p>
<p>What was the answer for the circle with radius of 1,2,and 3 problem? I did not know how to do it.</p>
<p>^It was the add up to 180 degrees choice. The diagram was ONE possible illustration. C could’ve been closer to the other angle and thus <ABC would’ve been more than 90.</p>
<p>@0husky0 you can’t be sure it’s less than 90 because the angles are not labeled. The other angle could very well be less than 90 degrees, since the picture is not drawn to scale. You can however, be sure both add up to 180.</p>
<p>@wingsreborn thanks, i stared at that one for about 3 minutes lol</p>
<p>the circle was 1/9. the larger circle has an area of 9 pi with 3 as its radius. then the smaller circle with 1 as its radius has an area of 1pi. so thats 1/9 :P</p>
<p>two wrong so far. i cant rmber any questions ._.</p>
<p>Oh thank u andisaid!</p>
<p>what about the one with the arc length</p>
<p>^8*pi, I believe.</p>
<p>well just finished reading through the 18 pages. I got a -1 MAX, assuming I got that Keisha one wrong, I forget what I put, but I was pretty confident in what I put.</p>
<p>Any chance +1 curve? but i guess im fine with a 35.</p>
<p>Yep, the arc length one was 8pi</p>
<p>k got it, jw</p>
<p>Ahhh, missed the sqrt(200) one due to misreading the question!!! Oh well</p>
<p>And what about the question that said like log(x) + log(x+2) or something. I had it down to C and E</p>
<p>@SoccerRyan : log (x^2 + 2x)</p>
<p>umm were there different tests? because i had completely different questions…</p>
<p>@SoccerRyan it was log(x) + log(x-2) which makes log(x^2-2x)</p>