Specialist Mathematics Exam 2 Paper

[chuck981996]

Here's the exam 2 paper. Can someone please make solutions?

[keltingmeith]

Will do when I get home. If anyone wants to beat me to it, go ahead.

[James2991]

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?!?!?!??!?!?!!?!?!?!??!

[wan0014]

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...

[Mic33k5]

why did u have to complete the cube?didnt u just have to use related rates and then solve the d.e?

[keltingmeith]

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).

[rui97]

you had to add |x>0 and t>0

then the cas would do it

[herrinal]

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

[DSubShell]

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

[Mic33k5]

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?