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January 21, 2021, 01:49:39 pm

Author Topic: VCE Methods Question Thread!  (Read 3153805 times)  Share 

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Sine

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Re: VCE Methods Question Thread!
« Reply #19005 on: November 18, 2020, 08:25:28 pm »
+1
Anyone know if derrick ha's bound reference is worth it?

I would definitely recommend it. I used those bound references for both my Methods and Specialist exams. Alongside using it as a bound reference you can definitely learn a lot of content from it and get a good understanding of the best way of setting out your answers. There are also exams inside (these exams are much harder than normal practice exams but they are really good in exposing students to all the types of little tricks that are possible to come up in exams).

Corey King

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Re: VCE Methods Question Thread!
« Reply #19006 on: November 19, 2020, 05:40:13 pm »
0
Hey guys,
I'm learning how to divide polynomials at the moment.
I don't understand why it is you can divide an expression by only one term in a binomial, then multiply the whole binomial by the quotient you just produced.

I feel like the explanation of the workings of this process is missing, either that or there is some assumed knowledge I am missing.

(an example of the method I do not understand)
https://gyazo.com/9ffeba1f03746e3f7dc84327f885bbc5

Any help in explaining how dividing with a binomial like this works would be much appreciated,
Corey
« Last Edit: November 19, 2020, 05:42:02 pm by Corey King »

a weaponized ikea chair

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Re: VCE Methods Question Thread!
« Reply #19007 on: November 20, 2020, 06:52:30 am »
0
The letters AABBBA are arranged in a row. How many different ways can they be rearranged?

I have no idea how to do this.

The Cat In The Hat

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Re: VCE Methods Question Thread!
« Reply #19008 on: November 20, 2020, 09:08:10 am »
0
The letters AABBBA are arranged in a row. How many different ways can they be rearranged?

I have no idea how to do this.
If there's no limit (e.g. 'must have an A on one end' or something), you use the factorial (!). For this, since there are 6 letters to be arranged, it would be 6!, which is 6*5*4*3*2*1.

Someone check if I'm right, though, there may be more to this question than I'm seeing, I don't know; haven't done this for a long time.
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p0kem0n21

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Re: VCE Methods Question Thread!
« Reply #19009 on: November 20, 2020, 10:18:42 am »
+1
The letters AABBBA are arranged in a row. How many different ways can they be rearranged?

I have no idea how to do this.

I think it is 20 ways? I get this from 6!/(3!*3!). Since there are 6 letters in general, we have 6! ways of arranging them. Then, we have to account for the repeats of A by dividing by 3! (since there are 3 repeats///3 As). We divide by 3! again due to the three repeats of B for the exact same reason as with A, and that's how we get 20.

If there's no limit (e.g. 'must have an A on one end' or something), you use the factorial (!). For this, since there are 6 letters to be arranged, it would be 6!, which is 6*5*4*3*2*1.

Someone check if I'm right, though, there may be more to this question than I'm seeing, I don't know; haven't done this for a long time.

Mmm, we have to account for the fact that the same letters appear, which would make certain orders the same. For example, if we numbered each of these letters, we could have:

A1 A2 A3 B1 B2 B3

We could also have:

A2 A3 A1 B1 B2 B3

However, these would both be A A A B B B, making them identical arrangements. We divide by the respective factorial amounts to account for these reappearing orders.

The Cat In The Hat

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Re: VCE Methods Question Thread!
« Reply #19010 on: November 20, 2020, 11:37:50 am »
0
I think it is 20 ways? I get this from 6!/(3!*3!). Since there are 6 letters in general, we have 6! ways of arranging them. Then, we have to account for the repeats of A by dividing by 3! (since there are 3 repeats///3 As). We divide by 3! again due to the three repeats of B for the exact same reason as with A, and that's how we get 20.

Mmm, we have to account for the fact that the same letters appear, which would make certain orders the same. For example, if we numbered each of these letters, we could have:

A1 A2 A3 B1 B2 B3

We could also have:

A2 A3 A1 B1 B2 B3

However, these would both be A A A B B B, making them identical arrangements. We divide by the respective factorial amounts to account for these reappearing orders.
Oh, whoops, thanks for checking that... I think what you're saying is correct. :)
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rotaryboy

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Re: VCE Methods Question Thread!
« Reply #19011 on: December 01, 2020, 09:02:36 pm »
0
Hi, all any help would be appreciated!
A girl travels from A to B at 5km/h and from B to A at 4km/h. The
total journey takes 30 minutes. Find the distance travelled, 2d.p.


p0kem0n21

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Re: VCE Methods Question Thread!
« Reply #19012 on: December 01, 2020, 09:19:55 pm »
+6
Hi, all any help would be appreciated!
A girl travels from A to B at 5km/h and from B to A at 4km/h. The
total journey takes 30 minutes. Find the distance travelled, 2d.p.

First things first, let's define x as being the distance between A and B (measured in km). A useful "formula" here is that distance divided by speed is time. Thus, from A to B, she spends x/5 hours ( x km divided by 5 km/h; distance divided by speed). Hopefully that's a useful hint for solving the rest of the problem  :)

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Re: VCE Methods Question Thread!
« Reply #19013 on: December 09, 2020, 02:40:02 pm »
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How much of the textbook should I do before school starts? Homework is chapter 1 + 2, but I'm thinking to also start on 13/14/15?

The Cat In The Hat

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Re: VCE Methods Question Thread!
« Reply #19014 on: December 09, 2020, 05:47:39 pm »
+3
How much of the textbook should I do before school starts? Homework is chapter 1 + 2, but I'm thinking to also start on 13/14/15?
I would recommend doing anything you feel particularly unsure about. For example, I found circular functions and probability difficult to grasp and thus would have been wise to study them over the holidays. But also remember to not overwork yourself and come fresh to the start of school! :)
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Sine

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Re: VCE Methods Question Thread!
« Reply #19015 on: December 09, 2020, 05:50:15 pm »
+6
How much of the textbook should I do before school starts? Homework is chapter 1 + 2, but I'm thinking to also start on 13/14/15?
You can really do as much as you want. However, going into detail for a few topics is always going to be better than superficially doing everything without the proper foundational understanding.

Snow Leopard

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Re: VCE Methods Question Thread!
« Reply #19016 on: December 12, 2020, 12:14:42 pm »
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Hi,

just wondering if it's useful to print out the study design for Methods (Units 3/4)? Or if there are any useful documents from VCAA to print out and use throughout the year?

TIA
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colline

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Re: VCE Methods Question Thread!
« Reply #19017 on: December 12, 2020, 11:49:13 pm »
+4
Hi,

just wondering if it's useful to print out the study design for Methods (Units 3/4)? Or if there are any useful documents from VCAA to print out and use throughout the year?

TIA

You should definitely know the contents of the SD, but I donít see the point of printing it out.

For your second question - yes - past exams.

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TheEagle

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Re: VCE Methods Question Thread!
« Reply #19018 on: December 13, 2020, 12:30:53 am »
+1
I agree with Colline. Printing some/most of your practice exams as soon as possible will save time later in the year when everyone is stressing about upcoming exams. Print a reasonable amount of them just so you don't waste any paper.




MoonChild1234

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Re: VCE Methods Question Thread!
« Reply #19019 on: December 13, 2020, 02:03:42 pm »
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How much of the textbook should I do before school starts? Homework is chapter 1 + 2, but I'm thinking to also start on 13/14/15?

my opinion but I recommend you do as much as possible, especially if methods is your only 3/4. i finished all the exercises by feb and found this great as i had heaps of time to do prac sacs and prac exams as these are by far the most valuable resource :)
hope this helped a bit