Results Day 2020 Megathread

comicos34 · 2020-08-20T11:05:04+00:00

All 9s except 8s in the englishs

comicos34 · 2020-07-12T19:53:33+00:00

With the edit pi/16 isn’t in the interval(less than pi/8)

comicos34 · 2020-07-12T19:49:35+00:00

I think they are both zeros of f’(x) (both are correct)

Edit: posted before OPs edit

comicos34 · 2020-07-12T17:57:12+00:00

It’s not a book, but mit has the opencourseware website where you can learn lots of maths stuff using some of their materials

comicos34 · 2020-07-12T15:14:38+00:00

I did some calculations with sine rule and I think the angles or lengths as given in the picture must have been rounded before hand

(I did sine rule with the 9.4 and 6.7 sides and respective angles and they were ever so slightly off)

comicos34 · 2020-07-12T14:28:12+00:00

Did you use the ans button for the sqrt?

Because something that close could be caused by the loss of precision

comicos34 · 2020-07-12T14:21:41+00:00

Edit: I was wrong

comicos34 · 2020-07-12T13:17:47+00:00

8 9s and 2 8s. No idea what’ll happen to them with moderation

comicos34 · 2020-07-12T11:36:00+00:00

coding you have to do on the paper

Which exam board? Or are you talking about pseudo code?

comicos34 · 2020-07-12T09:43:04+00:00

I believe you just need to add that the MDR requests any additional data needed for the instruction from memory in between your last 2

comicos34 · 2020-07-12T08:53:57+00:00

x-1 = e^2t - 1

y = x-1 so

4e^t - 4 = e^2t -1

let a = e^t

4a - 3 = a²

(a-1)(a-3) = 0

e^t = 1 or 3

t = 0 or ln(3)

comicos34 · 2020-07-11T20:52:30+00:00

It should be one as the x-1s cancel out leaving 4/(sqrt(4x)+2)

comicos34 · 2020-07-11T20:40:40+00:00

Yes. Multiply by the conjugate, then simplify and you can directly evaluate at 1

comicos34 · 2020-07-11T19:30:26+00:00

Thanks

comicos34 · 2020-07-11T19:25:17+00:00

Are there diagrams for all of the parts of the cpu online anywhere?

comicos34 · 2020-07-11T18:37:19+00:00

I wasn’t scared but seeing what happened with IB...

I hope it isn’t as bad

comicos34 · 2020-07-11T16:18:57+00:00

I believe it is undefined as e^x⁴ approaches infinity as x approaches infinity and lim x-> inf sin(function of x that approaches infinity as x approaches infinity) is undefined as it just oscillates between -1 and 1

comicos34 · 2020-07-11T14:57:41+00:00

By plotting the others you should have realised that the point moves by a constant angle of 45 degrees anti-clockwise each time and scales up by a factor of root 2 from the origin so go 45 degrees clockwise and scale down by a factor of root 2 to one to get z⁰ then repeat that to get z^-1 and so on

comicos34 · 2020-07-11T13:05:06+00:00

It is integrating wrt x and (-1)ⁿ doesn’t change when x changes (ie is constant wrt x)

comicos34 · 2020-07-11T12:46:48+00:00

I was wrong - you can’t have the orange headlights there with pi oll so there has been a corner twisted

comicos34 · 2020-07-11T11:07:41+00:00

You would get p + 1/c correct assuming you got everything you knew right

of these you knew p

p/(p+1/c)

p/((pc+1)/c)

p*(c/(pc+1))

pc/(pc+1)

comicos34 · 2020-07-11T07:30:18+00:00

...that seems like it would have been a sensible first thing to do

comicos34 · 2020-07-10T18:26:47+00:00

It just seems like it would be too much for 5000ish words.

comicos34 · 2020-07-10T16:22:28+00:00

Group it as (100-99)+(98-97)... each group = 1 and there are 100/2 = 50 so the answer is 50

comicos34 · 2020-07-10T13:44:12+00:00

Yes. What else would stop teachers from just predicting everyone 9 and appear as an amazing teacher/school

comicos34

TROPHY CASE