Application Task SAC

[bucket]

Uhm, this is what my teacher gave our class before the SACs.
It was pretty close to what we had to expect in our SAC but yeah my school's one would be different to what you're going to be doing.
p.s. yes it was pretty scrunched up .

[nerd]

Thanks...I'll have a try! Was your SAC more or less difficult than this?

[bucket]

less difficult. but i think it is because i did this. lol

[/0]

Uhm, this is what my teacher gave our class before the SACs.
It was pretty close to what we had to expect in our SAC but yeah my school's one would be different to what you're going to be doing.
p.s. yes it was pretty scrunched up .

"inclined at an angle of 10 degrees below the horizontal"

Are we supposed to be able to deal with angles in relation to gradients? My teacher said that isn't in the maths methods course. Moreover, the Cambridge book states: "This topic is not listed in the study design, but can be included for the understanding of other topics that are included." I hope you didn't have that in your SAC.

[Mao]

aiyah~

dont stress about it though

[bucket]

It was on my SAC, and it's come up a few times, :S/ It isn't that difficult though.

[/0]

I know I'm being pedantic, but still, that's not right lol. If that happens then we should be able to use second derivatives and u-substitution.

[dcc]

There have been questions on past exams which have related to the use of similar triangles, and I have yet to see a methods textbook which contains anything on similar triangles, so the relationship between the gradient of a curve and the tangent function should be something which you should know.

I know I'm being pedantic, but still, that's not right lol. If that happens then we should be able to use second derivatives and u-substitution.

From my understanding of methods, you can use the second derivative test to justify the nature of a stationary point, but u-substitution isn't required in methods, as the hardest integral they would give is like which can be tackled without any subs.

[Mao]

I know I'm being pedantic, but still, that's not right lol. If that happens then we should be able to use second derivatives and u-substitution.

hmm not quite...

second derivs and substitution method is beyond the level of the course.

whereas this angle/gradient conversion was part of the course in year 10 when you first learnt about linear relationships. [i'm pretty sure its in the VELS syllabus, if that's even the right authority ]

[bucket]

In the essential math methods book, it tells us to use second derivatives :S. That is if 'second gradients' are the derivatives of the derivative.
In fact, today I finished a section which had questions asking for velocity, and then asking for acceleration, and in the worked example these 'second derivatives' if I've understood it correctly were used. lol. I can scan it if you want to see.

I think that angle gradients are in the book somewhere as well :S.