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What was the answer for the dice question?
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Yeah sureCould you show an example plz? , it would really help
Which question was that? I dont remember any dice question lolWhat was the answer for the dice question?
I don't remember the answer but it was very easy just had to add all the probabilities and then subtract it from 1What was the answer for the dice question?
Yeah sure
Cubic sequences form: an^3 + bn^2 + cn + d.
We'll take this sequence as an example: 4, 16, 44, 94, 172, 284
Notice that the differences between these terms are: 12, 28, 50, 78, 112. But these differences are not constant. Ergo we will keep going..
Finding the differences once again, we get 16, 22, 28, 34. Yet again they're not constant..
Once more, 6, 6, 6. Now the differences are equal. We stop here. This is the difference at the third level.
Just like how we divide by 2 for the difference in a quadratic sequence, in a cubic we divide by 6. And hence a = (difference at third level / 6) = (6/6) = 1. So now it takes the form:
n^3 + bn^2 + cn + d.
Now is where it gets confusing for most:
We will form 3 equations to obtain the 3 unknowns: 'b', 'c' and 'd'
When n = 1, 1 + b + c + d = 4 [equation A]
n = 2, 8 + 4b + 2c + d = 16 [ B ]
n = 3, 27 + 9b + 3c + d = 44 [C]
From [ B ] - [A] --> 7 + 3b + c = 12 [D]
[C] - [ B ] --> 19 + 5b + c = 28 [E]
[E] - [D] --> 12 + 2b = 16
So b = 2
From [D] 7 + (3*2) + c = 12
So c = - 1
From [A] 1 + 2 - 1 + d = 4
So d = 2
Finally, we can form the rule: (n^3) + (2n^2) - ( n ) +2
If anyone's confused at *any* part, I'll be happy to help =)
The answer is 2n^2 + 4 .... i didnt get it eitheris there anyone who did that helll ques. of Nth term..?
6.5???srsly doesn't remember
it was 0.2What was the answer for the dice question?
maan that paper was shit? Waterflow? nTh term? NO FRIGGIN COMPOUND INTEREST?
Examiners were probs high tbh
Yea,dont be scary because paper 2 is 70 points (35%) and paper 4 is 130 points (65%),for C is 75 points so INSALLAH,i think that you can get Adoes anyone know if its possible to get an A in maths if you do badly in paper 2 ?
ITS 2n^2+3The answer is 2n^2 + 4 .... i didnt get it either
You have to get at least 120 out of 130 xDI'm getting above 60 in math paper 2 Inshallah
What should I get in paper 42 so that I can guarantee an A*?
yea i know that and i at least have to get 115 im worried cuz i was sure i would get an a* in maths.............That's high af!
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