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# MAT Prep Thread - 2nd November 2016 watch

1. I ran out of time so I couldn't do Q4 and people are saying it's easy for **** sake
Also what was Q3 about then?
2. For section B i got 10 combinations. 72 and 54 or smthn like that for c values? That right?
3. (Original post by louisforrest)
did people get 1 and 2 to be
1) l^105
2) sqrt(2) - 1
Pretty sure I got that
4. (Original post by louisforrest)
I don't think the radius was required for the area as it was just the first 2 circles involved
Ah right that'll explain it. I got 4 + root 7 for the radius : (
5. wtf was that summation question on the multiple choice
6. (Original post by AmanGottu)
For section B i got 10 combinations. 72 and 54 or smthn like that for c values? That right?
I got 10 combinations too
7. (Original post by RuairiMorrissey)
Also it appears I got the wrong radius but the right area for Q4?!
possible the radius of C3 has nothing to do with the area.
8. (Original post by dfbenjamin)
I think the idea was that if x^2 + 1 is a factor then subbing in x^2=-1 should give you 0, which only works if n is even

There's probably something I didn't think about that makes that wrong though
I think all the powers where raised by even numbers within the brackets. Can't remember. But i screwed that one up by thinking x^2=1. So frustrating
9. (Original post by AmanGottu)
For section B i got 10 combinations. 72 and 54 or smthn like that for c values? That right?
I got 10 combinations but 107 and 117 for c? I couldn't explain why they were the values though.
10. (Original post by SM-)
I ran out of time so I couldn't do Q4 and people are saying it's easy for **** sake
Also what was Q3 about then?
Was that the bilateral functions one?
11. (Original post by AmanGottu)
For section B i got 10 combinations. 72 and 54 or smthn like that for c values? That right?
I got 10 combinations but didn't use any logic just that b had to be applied 3 times and a twice or something then I justsat for ages and worked out the combinations. got 107 for c I think
12. (Original post by dfbenjamin)
I think the idea was that if x^2 + 1 is a factor then subbing in x^2=-1 should give you 0, which only works if n is even

There's probably something I didn't think about that makes that wrong though
I actually let x = i for that one lmao
13. What did people put for the MCQ on integral of the two equations being larger etc.
Also what was choice a and b for the last one as I forgot but I put a
14. wtf did ppl get for the area mc question with a in it
15. (Original post by CaiusMartius)
I got 10 combinations too
I got 10 combinations too. Although i didnt have time to work out the number of possible c or past that.
16. (Original post by danielhx)
2 even 3 odd
I don't remember which way around I put it but it was 2 for one and 3 for the other!
17. (Original post by RuairiMorrissey)
Ah right that'll explain it. I got 4 + root 7 for the radius : (
to be fair rounded to the closest 9 that would be 9
18. (Original post by CaiusMartius)
wtf did ppl get for the area mc question with a in it
4root3 - 11pi/6 I think. Certainly 4root3 minus something pi.
19. (Original post by CaiusMartius)
wtf did ppl get for the area mc question with a in it
area multiple choice question?
20. (Original post by SM-)
What did people put for the MCQ on integral of the two equations being larger etc.
Also what was choice a and b for the last one as I forgot but I put a
MCQ integral the x^4 one was larger than x^2 for values of a<1.

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