Specialist Exam 1

[Escobar]

i got the same as escobar, because 1/sinxcosx will always be negative in the second quadrant, whereas 1/sinx will always be positive

yep, same logic
i drew a graph and intepreted

[silverpixeli]

just wondering, does 1 mark exam 1 = 1 mark exam 2, or does each exam get taken and scaled individually?

I think in principle they're worth the same to your final score after scaling, that is i'm pretty sure they get scaled individually and then combined.

In practice exam 2 (tends to be) a little tougher and so a really good exam 2 score can turn around a poor exam 1 score (this is what happened to me! I stuffed up some small sections of exam 1 and got an A overall, but performed much better on exam 2)

[schooliskool]

Anyone got the answers?

[medjay]

can anyone post up a scaned copy by any chance?

[anonymous 774]

for question three where you had to find distance from origin, was the origin the starting point of j - 2k  or is it (0,0)?

[Escobar]

for question three where you had to find distance from origin, was the origin the starting point of j - 2k  or is it (0,0)?

i used (0,0)

[zsteve]

That was 13m right?

[anonymous 774]

i used (0,0)

do you get where i'm coming from though? it does seem a little ambiguous

[zsteve]

But the position vector is relative to an arbitrary, set origin O (maths terminology)

[grannysmith]

But the position vector is relative to an arbitrary, set origin O (maths terminology)

Actually, now that I think about, I'm unsure as to what they were referring to as the origin. Was it the starting position or (0,0)?

[Escobar]

i've always seen the origin refer to (0,0) so idk

That was 13m right?

yeah

[cosine]

what do you guys think the cut off will be for a+

[GeniDoi]

what do you guys think the cut off will be for a+

37 probably. More or less the same difficulty as last years, maybe slightly more difficult.

[sprout]

Probably 36/37

[GeniDoi]

Lost 5 marks, 3 of which due to stupid arithmetic errors that could have been avoided with a cas.

What kind of score do I need in exam 2 for a 40?