Oxford PAT 2016

Original post by NatoHeadshot

Original post by lyamlim97

Alright.
Yeap, double angle formula. Its in CIE Maths P3 which is what i do so i see it almost all the time

Posted from TSR Mobile

(edited 7 years ago)

1468240692105.jpg51.8KB

Reply 83

Original post by NatoHeadshot

Is any board fine or do you prefer AQA :tongue:

I only used AQA when revising, mainly because that's the board that was used in my A Levels. Everything you need to revise for the Physics section is on AQA (except for lunar eclipses etc.) :smile:

Reply 84

Original post by NatoHeadshot

Could someone differeniate 2(sin^2xcos(2x+1))^3 wanna compare with my answer

Here is my solution -

tangotangopapa2's solution is also perfectly correct :smile:

Reply 85

Original post by tangotangopapa2

Thanks a lot. Really short and simple. Is that all we need to learn?

If not, I would have banged my head with zener effect, avalanche effect, doping, transistors, logic gates and what not.

Really appreciate it.

No problem at all! Lol don't worry I seriously doubt that stuff will come up! Oxford stick to the spec very well and if something that isn't on it does come up, they will provide you with the necessary information to complete the question :smile:

Reply 86

Original post by tangotangopapa2

Yes.

Need to learn almost everything in maths section, especially curve sketching.

For curve sketching, check out this -

https://www.youtube.com/results?search_query=patrickjmt+asymptotes

These videos show you really quick ways to determine the various types of asymptotes :smile:

Reply 87

Original post by PhyM23

Here is my solution -

tangotangopapa2's solution is also perfectly correct :smile:

6(2 sinx cosx cos(2x+1) - 2sin^2x sin(2x+1) ^2? is that fine too? like if we left it at that :tongue:

Reply 88

Original post by NatoHeadshot

6(2 sinx cosx cos(2x+1) - 2sin^2x sin(2x+1) ^2? is that fine too? like if we left it at that :tongue:

Would you mind showing me your working? :smile:

Reply 89

Sorry for the mess, I did it really roughly

Original post by PhyM23

Would you mind showing me your working? :smile:

Reply 90

Original post by PhyM23

I only used AQA when revising, mainly because that's the board that was used in my A Levels. Everything you need to revise for the Physics section is on AQA (except for lunar eclipses etc.) :smile:

Oh and yes, I almost completely forgot about lunar eclipses and phases of moon. Would you mind if I asked where you learnt those from?

Original post by PhyM23

For curve sketching, check out this -

https://www.youtube.com/results?search_query=patrickjmt+asymptotes

These videos show you really quick ways to determine the various types of asymptotes :smile:

Thanks a lot. I went through some of his videos and they were really helpful. I also looked at his rational inequalities (you were talking about) videos. Very helpful.

I also found this: http://faculty.uml.edu/rbrent/131/LF/Lect26.pdf
This sheet has some functions (e.g x e^-x , x^2 times ln x) which I was hungrily looking for.

Reply 91

Original post by NatoHeadshot

Sorry for the mess, I did it really roughly

You need to begin by using chain rule to this function : 2 z^3 and get 6z^2 times dz/dx (I believe you have missed / misinterpreted this step. Correct me if I am wrong)
and then use product rule to find dz/dx (which you have found correctly but you wrote your answer as 6 times (dz/dx)^2).

Reply 92

Original post by tangotangopapa2

Oh and yes, I almost completely forgot about lunar eclipses and phases of moon. Would you mind if I asked where you learnt those from?

Thanks a lot. I went through some of his videos and they were really helpful. I also looked at his rational inequalities (you were talking about) videos. Very helpful.

I also found this: http://faculty.uml.edu/rbrent/131/LF/Lect26.pdf
This sheet has some functions (e.g x e^-x , x^2 times ln x) which I was hungrily looking for.

I literally just looked at a picture of the phases of the Moon. However I would urge you to look at problems involving determining distances between the Sun and the Moon etc. during eclipses etc. One came up last year and caught me off guard a little!

You're very welcome. I agree they are incredibly helpful!

Those sheets for sketching graphs look really helpful! They are important functions to know how to sketch for the PAT.

(edited 7 years ago)

Reply 93

Original post by NatoHeadshot

Sorry for the mess, I did it really roughly

As stated above, this question includes both the chain rule and the product rule. So you differentiate the whole bracket (bring the power down and decrease by one) then use the product rule on the inner part and multiply it with your initial differential :smile:

Reply 94

Original post by PhyM23

I am sorry to pester you but what do you use to view pdf files? I mean I will get old zooming in and zooming out this sheet : http://www.madasmaths.com/archive/maths_booklets/standard_topics/various/curve_sketching_exam_questions.pdf

The figures are extremely small.

(edited 7 years ago)

Reply 95

Original post by PhyM23

My mistake! I sent the wrong answer I had the right answer on the next page I did this question days ago so I flipped to the wrong page
Clumsy me!
HAHHA this is why ill mess up the PAT

Reply 96

Original post by tangotangopapa2

It's totally fine! Are you talking about the worked solutions? I'm afraid you have to zoom in to see them. In terms of what I use to view them I don't know lol. It's just the one that comes up when I click on it (it opens as a new tab on Google Chrome)

Reply 97

Original post by NatoHeadshot

My mistake! I sent the wrong answer I had the right answer on the next page I did this question days ago so I flipped to the wrong page
Clumsy me!
HAHHA this is why ill mess up the PAT

Haha

happens to all of us!

Don't worry you won't mess up!

In terms of your answer it is correct, however the minus has disappeared from the -2sin(2x+1) in your final answer. This is clearly a typo though as you included the minus above it :smile:

Reply 98

Original post by PhyM23

Haha

yup it was a typo thanks! You've been so helpful. What are you up to lately?

Reply 99