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November 04, 2025, 02:39:43 pm

Author Topic: VCE Methods Question Thread!  (Read 5775640 times)  Share 

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Rod

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Re: VCE Methods Question Thread!
« Reply #5610 on: August 10, 2014, 11:07:29 pm »
0
Rule 1) Don't do practice questions the day before you have a SAC/exam UNLESS you have solutions available to you.
Rule 2) See Rule 1
Rule 3) Sleep
Rule 4) Sleep some more
Rule 5) Don't study instead of sleeping - sleeping is good.

However, if you can do integration by recognition, areas under and between curves and know your basic kinematics, you'll be fine.
Hey Euler do you have any tips for the last couple of months? Apart from doing lots and lots of practise exams? So stuff you did back in your day that really helped you out for methods.
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Re: VCE Methods Question Thread!
« Reply #5611 on: August 10, 2014, 11:16:44 pm »
+4
Make sure you actually understand what's going on. Your ~30 student can take any situation, and spit out mathematics that are relevant to what they're doing. A 35+ student should be able to actually understand what they're doing and why they're doing it. When you actually properly understand everything, then do practice exams.

When doing practice exams, don't just do one exam and be done with it. When correcting it, look at the methods used by the people who wrote the solutions. Then, think about other ways you could've approached the question - often, there is more than one way, and you might've picked the longer. In specialist, I learned much faster ways of finding derivatives of parametric functions by playing around like this, saved me a lot of time in the long run. In fact, particularly for methods, there are quite a few ways to answer questions, and often the technique used by most students is the more complicated one.

Finally, when it comes to a week before, DON'T LEARN NEW THINGS. You won't remember them - instead, just do practice questions and practice papers to hone the skills you already have. Learning new things that close to the exam will only scare you and detriment your score. In the week before, I tried to memorise the formula for the steady state solution, and I did not remember them at all.

Forming a group of friends you can go over things with helps - even in my case, I was miles ahead of everyone I worked with, but helping them out still helped me consolidate what I already knew. Plus, sometimes they found a quicker way to do something than I would've, so don't underestimate peers just because you normally do much better than them overall. While you might all be ranked against each other, you're also all in the exact same situation, so don't get so competitive that you're not willing to help each other out. In fact, I would've completely died in chemistry if it weren't for the friends I had to help me with the papers and revise with.

Rod

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Re: VCE Methods Question Thread!
« Reply #5612 on: August 10, 2014, 11:26:55 pm »
+2
Make sure you actually understand what's going on. Your ~30 student can take any situation, and spit out mathematics that are relevant to what they're doing. A 35+ student should be able to actually understand what they're doing and why they're doing it. When you actually properly understand everything, then do practice exams.

When doing practice exams, don't just do one exam and be done with it. When correcting it, look at the methods used by the people who wrote the solutions. Then, think about other ways you could've approached the question - often, there is more than one way, and you might've picked the longer. In specialist, I learned much faster ways of finding derivatives of parametric functions by playing around like this, saved me a lot of time in the long run. In fact, particularly for methods, there are quite a few ways to answer questions, and often the technique used by most students is the more complicated one.

Finally, when it comes to a week before, DON'T LEARN NEW THINGS. You won't remember them - instead, just do practice questions and practice papers to hone the skills you already have. Learning new things that close to the exam will only scare you and detriment your score. In the week before, I tried to memorise the formula for the steady state solution, and I did not remember them at all.

Forming a group of friends you can go over things with helps - even in my case, I was miles ahead of everyone I worked with, but helping them out still helped me consolidate what I already knew. Plus, sometimes they found a quicker way to do something than I would've, so don't underestimate peers just because you normally do much better than them overall. While you might all be ranked against each other, you're also all in the exact same situation, so don't get so competitive that you're not willing to help each other out. In fact, I would've completely died in chemistry if it weren't for the friends I had to help me with the papers and revise with.
Great advice, +1, thanks Euler :)
2013-2014:| VCE
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2019-X:| Doctor of Dental Surgery (discontinued)
2019 -2021:| Master of Physiotherapy

Currently: Physiotherapist working at a musculoskeletal clinic. Back pain, sore neck, headaches or any other pain limiting your study? Give me a PM (although please do see your personal health professional first!)

Any questions related to pathways towards studying dentistry or physiotherapy? Gimmi a PM!

LiquidPaperz

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Re: VCE Methods Question Thread!
« Reply #5613 on: August 11, 2014, 05:12:40 pm »
+1
still couldnt get this

answer is A

Stressedyear11here

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Re: VCE Methods Question Thread!
« Reply #5614 on: August 11, 2014, 05:39:19 pm »
0
Hi everyone!
I need help with remembering exact values, in relation to circular functions.
I've been on this topic for about 2-3 weeks now...and I still can't remember them!
Is there an easy way or metholodical, or any way actually to help me memories them from now to Thursday (sac is on Thursday)?

Thank you!

AngelWings

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Re: VCE Methods Question Thread!
« Reply #5615 on: August 11, 2014, 05:52:21 pm »
+2
Hi everyone!
I need help with remembering exact values, in relation to circular functions.
I've been on this topic for about 2-3 weeks now...and I still can't remember them!
Is there an easy way or metholodical, or any way actually to help me memories them from now to Thursday (sac is on Thursday)?

Thank you!

Simplest way to me...
For sine:
it's 1,2,3,4 under the square root sign divided by 2 e.g. (root 3)/2
For cosine:
opposite way to sine.
For tan:
Rote learn values until memorised (i.e. maintenance rehearsal for any Psych students out there). 1/(root 3), 1 (root 3), undef.
(I think of this as smallest to largest.)

Anyway... I have my own question to ask on here:
Q: A quantity of gas expands under pressure p N/m2 according to the law pv0.9=300 where v m3 is the volume of gas under pressure p N/m2.
Part:
a. What is the average pressure as the volume changes from 0.5m2 to 12?
b. If the change in volume in terms of t is given by v=3t+1, what is the average pressure as the time changes from 0 to 1?

Please show working. I will provide answers if necessary. (It's Q6. from Exercise 12J in the Essentials textbook for reference.)
« Last Edit: August 11, 2014, 06:31:04 pm by AngelWings »
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LiquidPaperz

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Re: VCE Methods Question Thread!
« Reply #5616 on: August 11, 2014, 06:05:09 pm »
+2
Simplest way to me...
For sine:
it's 1,2,3,4 under the square root sign divided by 2 e.g. (root 3)/2
For cosine:
opposite way to sine.
For tan:
repeat numbers until memorised. 1/(root 3), 1 (root 3), undef.
(I think of this as smallest to largest.)


Im not sure exactly what your saying there, but it seems very confusing. The easiest way to remember the exact values is to refer the the two triangles attached. Find what you need and you have it there. E.g. Tan45 = 1

Phy124

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Re: VCE Methods Question Thread!
« Reply #5617 on: August 11, 2014, 06:17:15 pm »
+4
HeShe was trying to explain this:



Note the numerators within the square roots.
« Last Edit: August 11, 2014, 06:30:00 pm by Phy124 »
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AngelWings

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Re: VCE Methods Question Thread!
« Reply #5618 on: August 11, 2014, 06:27:51 pm »
+1
Precisely, Phy124. I'm not very good with the mathematical font stuff on AN.

If I could get some help with the question I posted before, that would be greatly appreciated. Thanks in advance.
« Last Edit: August 11, 2014, 07:09:38 pm by AngelWings »
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Zealous

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Re: VCE Methods Question Thread!
« Reply #5619 on: August 11, 2014, 09:11:31 pm »
+2
Anyway... I have my own question to ask on here:
Q: A quantity of gas expands under pressure p N/m2 according to the law pv0.9=300 where v m3 is the volume of gas under pressure p N/m2.
Part:
a. What is the average pressure as the volume changes from 0.5m2 to 12?
b. If the change in volume in terms of t is given by v=3t+1, what is the average pressure as the time changes from 0 to 1?
a:
Express p (pressure) in terms of v (volume):


Use average value of a function from v=0.5 to v=1:


b:
Sub in v=3t+1 into p (rearranged from before):



Use average value of a function from t=0 to t=1:

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LiquidPaperz

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Re: VCE Methods Question Thread!
« Reply #5620 on: August 12, 2014, 06:05:19 pm »
+1
could someone help with this! thanks

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Re: VCE Methods Question Thread!
« Reply #5621 on: August 12, 2014, 06:54:53 pm »
+2
could someone help with this! thanks
Okay so you're given the point (3, 13.5). What you should know is that the x-coordinate is not actually 'x' but is actually .

So rather than saying , it's actually .

From there you just sub it into each equation in the MCQ and you'll find your answer to be 'A' since:

(Sub in )


(For some reason this feels more like a question you'd be asked in Specialist for Variation..)

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Re: VCE Methods Question Thread!
« Reply #5622 on: August 12, 2014, 06:56:09 pm »
+2
could someone help with this! thanks

Haven't seen that kind of question before, but I'll give it a shot :)

Because the y vs x^3 graph produces a straight line, we can deduce that y=kx^3 where k is the gradient of this graph.

Using the gradient formula (rise/run) we can find that k=9/2

Therefore y = 9x^3/2 and the answer is A.

PS Apologies for all the text notation, I'm not familiar with how to do equations in comments.
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Re: VCE Methods Question Thread!
« Reply #5623 on: August 12, 2014, 07:11:11 pm »
+2
If


Then why does



??
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keltingmeith

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Re: VCE Methods Question Thread!
« Reply #5624 on: August 12, 2014, 07:41:38 pm »
+6
If


Then why does



??

There's a few different ways to do this, but my favourite is with the specialist technique of u-substitution.



Now, we substitute this into the original integral, note my handling of the limits:



Note that in EVERY situation,

Other methods include looking over the linear transformations you've made to the graph and how that affects the area.

(For some reason this feels more like a question you'd be asked in Specialist for Variation..)

Lel, specialist doesn't cover variation. In fact, I may be wrong, but pretty sure that was a further thing.