Author Topic: Exam 2 Suggested Solutions Finished (Read 26875 times) Tweet Share

gabrielle__ · « **Reply #15 on:** November 10, 2008, 03:04:59 pm »

Quote from: Lulu on November 10, 2008, 03:01:48 pm

For the MC, which was like e^(2x)+e^(-2x), find f(2u), was the answer C? That was a last minute blind guess for me

yes, i did C
it was like (f(something))^2 -2

Butler · « **Reply #16 on:** November 10, 2008, 03:05:58 pm »

Is it just me, or were there hardly any A answers in the MC section?

Lulu · « **Reply #17 on:** November 10, 2008, 03:06:47 pm »

Quote from: gabrielle__ on November 10, 2008, 03:04:59 pm

Quote from: Lulu on November 10, 2008, 03:01:48 pm
For the MC, which was like e^(2x)+e^(-2x), find f(2u), was the answer C? That was a last minute blind guess for me

yes, i did C
it was like (f(something))^2 -2

yay thanks

when in doubt, guess C!

zzdfa · « **Reply #18 on:** November 10, 2008, 03:07:25 pm »

Quote from: gabrielle__ on November 10, 2008, 03:04:59 pm

Quote from: Lulu on November 10, 2008, 03:01:48 pm
For the MC, which was like e^(2x)+e^(-2x), find f(2u), was the answer C? That was a last minute blind guess for me

yes, i did C
it was like (f(something))^2 -2

is this CAS? i don't remember that q at all (i did non cas)

Lulu · « **Reply #19 on:** November 10, 2008, 03:08:19 pm »

yep it was CAS

gabrielle__ · « **Reply #20 on:** November 10, 2008, 03:09:27 pm »

Quote from: Lulu on November 10, 2008, 03:06:47 pm

Quote from: gabrielle__ on November 10, 2008, 03:04:59 pm
Quote from: Lulu on November 10, 2008, 03:01:48 pm
For the MC, which was like e^(2x)+e^(-2x), find f(2u), was the answer C? That was a last minute blind guess for me

yes, i did C
it was like (f(something))^2 -2

yay thanks

when in doubt, guess C!

haha i got told by my teacher that an experiment found that the most common multiple choice answer is a.
i only got like 3 a's on that exam?? but nice guess (Y)

Synesthetic · « **Reply #21 on:** November 10, 2008, 03:11:16 pm »

Three of your MC answers are different to mine: #13, #15, #20
I got C, E, B respectively...

Nelle91 · « **Reply #22 on:** November 10, 2008, 03:14:56 pm »

I got 13 C aswell

Nelle91 · « **Reply #23 on:** November 10, 2008, 03:17:07 pm »

I got B for 20 aswell

Synesthetic · « **Reply #24 on:** November 10, 2008, 03:18:10 pm »

20 was the antiderivative graph (I think?) which was definitely the quasi-arctanx curve [ B ] ; the derivative graph >0 for all x thus the gradient of the required answer was always positive.

I can't remember the other two...

(Thanks for confirming Nelle *edit* , daniel, Lulu [well trinon has 15 E now...?])

Lulu · « **Reply #25 on:** November 10, 2008, 03:18:29 pm »

Quote from: Synesthetic on November 10, 2008, 03:11:16 pm

Three of your MC answers are different to mine: #13, #15, #20
I got C, E, B respectively...

Same, I got B for 15. though

danielf · « **Reply #26 on:** November 10, 2008, 03:20:50 pm »

yeah 13 was definitely C

Lulu · « **Reply #27 on:** November 10, 2008, 03:21:58 pm »

hmm..i don't understand how 15 is E.

they're not independent because the 2 is in both sets right?

gabrielle__ · « **Reply #28 on:** November 10, 2008, 03:22:15 pm »

yeah 13 is C, i just did it again on my calc.
different questions between CAS and NON CAS:
questions and my answers for CAS
1 C
3 D
6 B
7 C
9 A
12 C
i disagree with question 20, i got B

gabrielle__ · « **Reply #29 on:** November 10, 2008, 03:23:16 pm »

and i disagree with 15, i got B

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