SM Exam 2 2009 Suggested Solutions.

[dejan91]

What did you get wrong?

[anonuser0511]

i was considering if the oblique asymptote needed to be considered for 4b but otherwise good work

[TrueTears]

What did you get wrong?

2 stupid fukn MC which I misinterpreted gah...

[hyperblade01]

Hey TT just wondering, if you handed that exam paper in for marking (and assuming it's all correct) would it be sufficient working?

[TrueTears]

Hey TT just wondering, if you handed that exam paper in for marking (and assuming it's all correct) would it be sufficient working?

Yeah most working is sufficient, although in the actual exam for most questions that I used the calc to solve I wrote "Solved using TI-89 followed by the [equation] I typed into the calc". I didn't write em for these solutions cause I don't think it's that necessary

[chengerz]

Questions 17 and 19 for multichoice....are you sure they're correct?

[hyperblade01]

MC 17 - if you use the cosine rule and sub in angle = 120 you get that

[TrueTears]

Questions 17 and 19 for multichoice....are you sure they're correct?

100% positive. I've checked most of these with /0.

[vamsiaus]

hey TT question 10 for Multiple choice, are u sure its right. I tried at home again Im getting E again and again. You got B.

[TrueTears]

hey TT question 10 for Multiple choice, are u sure its right. I tried at home again Im getting E again and again. You got B.

Tricky question, sketch the graph, you see symmetry. You need 3 areas.

Thus B.

[NE2000]

Hey Q13, it says 'concentration'. Your answer holds for amount, does it hold for concentration?

[TrueTears]

Hey Q13, it says 'concentration'. Your answer holds for amount, does it hold for concentration?

This is one I think I got wrong, I put C, but /0 and a few others at my school put A and they had a reasonable explanation for it. I'll get /0 to explain soon...

[chengerz]

nvm i'm an idiot.

[jules]

for the wine glass question with the related rates, it says 6cm from the top of the wine glass.
doesnt that make it 14 cm for y? (the total height of the glass is 20 cm)
because you cant have negative values for y as the glass is being filled?

[spizaa #5]

i just downloaded winrar and trying to open up the program but its going straight to photos or in jibberish :S
to assist those in my shoes, could someone please post skeleton answers? would be greatly appreciated.
also i got A for 13, if that helps