ATAR Notes: Forum
Archived Discussion => Mathematics/Science/Technology => 2014 => Exam Discussion => Victoria => Specialist Mathematics => Topic started by: chuck981996 on November 10, 2014, 05:38:49 pm
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Here's the exam 2 paper. Can someone please make solutions? :)
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Will do when I get home. If anyone wants to beat me to it, go ahead. :P
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I found multiple choice extremely time consuming and so I had to guess many :'(
Aced extended response though.
And x as a function of t?!?!?!??!?!?!!?!?!?!??!
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I found multiple choice extremely time consuming and so I had to guess many :'(
Aced extended response though.
And x as a function of t?!?!?!??!?!?!!?!?!?!??!
you had to complete the cube for that. and the CAS doesn't do it...
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why did u have to complete the cube?didnt u just have to use related rates and then solve the d.e?
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you had to complete the cube for that. and the CAS doesn't do it...
You can complete the square of the differential equation dt/dx, and then integrate it in turning point form. That way, you don't have to "complete the cube" the get x(t).
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you had to add |x>0 and t>0
then the cas would do it
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I accidentally read the last question as rounding to the nearest 0.1ms^-1, so I got 4.0 and 4.8. So clearly I lost a mark, would I then lose a mark from using these values in the next question (the working was fine) or do they award consequential answer marks? IM SO STUPID GUYS THIS MAKES ME SAD haha
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you had to add |x>0 and t>0
then the cas would do it
Nooooooooooo! Are you serious... thats all it took? D:
I should've listened to the warning "more solutions may exist if you specify an appropriate domain" at the bottom. But that usually is bogus :(
At-least I was closer than I think
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For the vector resolute question when you stated your answer as a sum of the two components, did u have to state which was which component, or was it okay to just leave it as a sum if you had said which was the parallel and perpendicular one beforehand?