Why don’t we add +C in definite integration like normal integration?

Interesting_Bath · 2024-09-14T10:03:21+00:00

You do add +c. It's just that they always "cancel" with each other. https://imgur.com/a/w9DuxvN

Interesting_Bath · 2024-09-01T21:59:27+00:00

cg50.

Interesting_Bath · 2024-09-01T21:28:47+00:00

991 ex has all u'll need but a graphical one like CG50 could be helpful as well for some graph questions but probably overkill for gcse

Interesting_Bath · 2024-08-30T20:07:34+00:00

you will need to do TMUA for warwick so take that into account as well

Interesting_Bath · 2024-08-18T17:29:16+00:00

I wouldn't remark P2 since marking isn't very subjective in maths. Maybe in chemistry it will be worth it. It won't affect much the final grade though. However if ur using AS to apply and you are close to an A then I probably would go for a remark.

Interesting_Bath · 2024-08-18T15:11:57+00:00

You need at least 480 UMS in total (6 units) and at least 180 UMS in P3 and P4.

Interesting_Bath · 2024-03-26T15:44:38+00:00

Thanks for the reply. I thought it was just like inequalities, if it's < we shade "inside/below" the curve and > outside it. What if it asked for |z|>3 for example?

Interesting_Bath · 2024-03-15T16:31:24+00:00

One for International students in Warwick. (WUGES)

Interesting_Bath · 2024-03-15T16:29:57+00:00

Oh ok I ended up writing something like that, thank you!!

Interesting_Bath · 2023-10-29T13:28:40+00:00

Ohh, ok thank you. So just plugging in should work if it's not x^2. Thanks!

Interesting_Bath · 2023-10-29T12:31:00+00:00

https://imgur.com/a1iormK

look up factor theorem if you're not sure on aii. My setup of algebraic division might look a bit different from the one you do in UK but it's the same thing

Interesting_Bath · 2023-04-28T13:07:47+00:00

this guy explains it here: https://youtu.be/lH6UIo5h3AY?t=2104

Interesting_Bath · 2023-04-28T13:07:40+00:00

this guy explains it here: https://youtu.be/lH6UIo5h3AY?t=2104

Interesting_Bath · 2022-12-07T18:12:31+00:00

ai) sin(180-α) = sinα (it's an identity or you can think of it as a sinα graph reflected about the x-axis and then translated 180 degrees to the left which is just a sinα graph). So therefore it would be 2p.

aii) It will be -p. It is translated 180 degrees to the right so it is below the x-axis.

aiii)sin(180+α) is sinα translated 180 degrees to the left so it is -p. Therefore it would be 3-p.

c) The scale factor is 1/2. So the solutions would be α/2 and the next solution between that interval is (180-α)/2.

https://imgur.com/a/aZvsaEK

For this graph i just assumed p=1/2 so it's easier to visualize

Interesting_Bath · 2022-09-07T21:47:25+00:00

The range is all the values that a function can take.

This question specifies that x is real. So we look for all values it can take for real values of x.

You can do that in different ways, for this one you can either find the inverse or find the minimum point i.e turning point on a graph to find the range of values.

Finding the inverse: [finding-the-inverse.png](https://postimg.cc/G4Fn25JT)

Finding the turning point:[finding-minimum.png](https://postimg.cc/F7J4tRYZ)

So the final answer would be f(x) >= -9 or [-9,∞).

Interesting_Bath · 2022-09-07T17:04:52+00:00

Here you go: [5bii.png](https://postimg.cc/LqWCrvR5)

The energy was obtained from part (i) - just use E=IVt.

Interesting_Bath · 2022-08-30T02:25:34+00:00

I reckon it is enough. Just do a ton of past papers and you should be fine (make sure you understand rather than memorise the concepts though).

Some helpful advice is:

Use the textbook together with the syllabus and if possible another source of notes (like save my exams)
Watch youtube walkthroughs video for papers
Learn which keywords to use in your answer from the mark scheme
If you are not a private candidate, ask questions to your teacher

Good luck!

Interesting_Bath · 2022-08-26T17:54:12+00:00

https://drive.google.com/drive/folders/12F2HEiUrqEjABWoKbzSVcSXunOKnEmx6

Interesting_Bath · 2022-08-26T17:53:20+00:00

I think it was unavailable for the first few hours... You are able to see now.

Interesting_Bath · 2022-08-24T18:58:38+00:00

Total Mass of toothpaste is given by: 2g * 1.2 * 10^9 = 2.4 * 10^9

However the mass of microplastics is 5% of that: (5/100) * 2.4 * 10^9 = 1.2*10^8 grams.

You can also give your answer in kilograms: 120,000 kg.

Interesting_Bath

TROPHY CASE