<p>What was the answer for the FRQ looking for the area of R?</p>
<p>I got some weird answer like 16/pi - 1 1/3
It was annoying to do by hand…</p>
<p>For the MC with arcsin something something, did you guys get 3/ square root whatever minus whatever??</p>
<p>Hey bowler that’s what I got too</p>
<p>And btw for the limit one in MC it was like ln(x+3) - ln (5) or something over x, and they wanted the limit. was the answer 0? cuz i didn’t know how to simplify it</p>
<p>I got 1/something something for arcsin… was the answer to the graph question the choice with the asymptote (part a)? And i got 1/5 for the ln question</p>
<p>@bowler - You don’t actually have to solve it all the way through. Once you get to the point where it’s only a matter of multiplying it out, etc. you can leave it as is. Best to do so, to prevent mistakes.</p>
<p>That question was to much for a noncalc… but did anyone else have two different exams?</p>
<p>I said it was the one with the sharp point, because I remember how it’s a rule that if there’s like a definite point (like an aboslute value graph) it’s not differentiable. And how did you do the sin one? I plugged it back in and the one with 1/ whatever didn’t work.</p>
<p>What did everyone get for the gravel frq?
for the first one it was easy since it was just symmetric difference quotient.
part b asked for the amount that goes in during the interval and i did g(0)+integral form 0 to 5.
part c wanted to know increasing or decreasing, and my final answer was like -1.8 something and decreasing
and part d, max gravel, was at t=4.8ish and 635.something.
anyone agree.disagree</p>
<p>For max gravel, I got ~591. I almost overlooked the constant rate of decrease of 100 tons per minute, but when I graphed it, the zero was around 1.3. It changed from positive to negative at that point, meaning that the graph had a maximum. Then I added the initial 500.</p>
<p>Overall, not bad. I’m pretty confident in a 5.</p>
<p>Yes! Area was 16pi - 4/3</p>
<p>That gravel one was a little bit tough, but I was pleased with the rest of the FRQ w/I calc.</p>
<p>Foreverfish do u remember the ln limit one in MC? and the arcsin one? :)</p>
<p>Really? I wasn’t sure if I did that one right.
Maybe if you got it too then we did it right!</p>
<p>And yeah I think I got that too kiwi. It was a complete guess though because I didn’t know the derivative of arcsin. I only know arctan as far as inverse trig functions go.</p>
<p>For the gravel frq I got the same except for the 0<x<5 part I didn’t add the initial value bc I thought it was asking for the amount added so you wouldn’t include what was already there ugh</p>
<p>For the last part of the gravel FRQ, didn’t the max amount of gravel occur when the two rates were equal? When I did that, the max turned out to be about ~625.</p>
<p>I honestly don’t even remember what I got for the gravel FRQ. I guessed on some of it. I think I bombed that question. xD</p>
<p>For arcsin I think I got 3/sqrt(9-x^2). For the ln limit, I got 1/5. I was really pressed for time on the MC, so it’s possible that these are wrong.</p>
<p>I got that for the arcsin ForeverFish, and I didn’t have time to go back and check the ln limit because I didn’t know how to do it off the top of my head. I guessed 1/2 because I hadn’t used that letter in a while. Sad I know.</p>
<p>Okay I got the same for the arcsin one (holl@) but the ln limit one I totally had no idea, if you don’t mind could you explain to me how ln limits work?</p>