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STEP Prep Thread 2016 (Mark. II)

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1. for the last part of 6 i just substituted in a rearranged version of the differential equation of ym(x) and that ended up with the right answer i think?
2. (Original post by 16Characters....)
Ah right, nice. Unlike how that paper went for me. Only managed 2 fulls (one of which I made a mistake on) and got 4 partials of varying levels of success. How'd you find it?
Pretty horrid, It's unlikely that I'll get into Cambridge unless I get an S in STEP III to make up for the 2 I've gotten in this paper. I got 2 fulls (one of which I made a mistake on) and 4 partials, none really worth more than 10 marks.
3. (Original post by Zacken)
Pretty horrid, It's unlikely that I'll get into Cambridge unless I get an S in STEP III to make up for the 2 I've gotten in this paper. I got 2 fulls (one of which I made a mistake on) and 4 partials, none really worth more than 10 marks.
Which questions did you do full?
4. (Original post by sweeneyrod)
Did anyone actually do the last part of 6? I feel like some slightly more general version of the last part (proving y2(yn(x)) = y2n(x)) would've worked, but I couldn't find it.
I did it - post 69

http://www.thestudentroom.co.uk/show...4166421&page=4
5. (Original post by 16Characters....)
Which questions did you do full?
Q3 and 7. You?
6. (Original post by Zacken)
Pretty horrid, It's unlikely that I'll get into Cambridge unless I get an S in STEP III to make up for the 2 I've gotten in this paper. I got 2 fulls (one of which I made a mistake on) and 4 partials, none really worth more than 10 marks.
From what I've seen of you on TSR, I find that hard to believe
7. What do you think this would be?

Q 1: Got close to showing the intersection was on 4y^2 = 3x-1 but couldn't quite get through the algebra. Showed that curves met by saying that all cubics have at least one real root, but didn't factorise. Sketched the correct shape of the graphs, but no coordinates for the points where they touched.

Q 3: Should be full, apart from I didn't justify the number of solutions for even n. Lovely question!

Q 5: Wrote down the first expression they asked for and then the sum.

Q 6: Did everything up to the last part. Tried the last part by replacing 2 with m in previous working, but didn't get anywhere.

Q 7: Hopefully got everything right up to (iv). In that part, got to the integral of 1/(sin x + cos x + 1) but didn't make a substitution to get further.

Q 12: Showed everything that needed to be shown, not quite sure if I got the very last part (probability of exactly one) correct.
8. how much marks do you think iii of the binomial question (q5) would be worth?
9. (Original post by Zacken)
Q3 and 7. You?
Q1 and Q3 (Q1 is the one I screwed up). I didn't manage to finish Q7. I didn't see how to integrate 1/cos x(cos x + sin x) during the exam. Partials on Q6, Q8, Q5 also.
10. (Original post by Zacken)
Pretty horrid, It's unlikely that I'll get into Cambridge unless I get an S in STEP III to make up for the 2 I've gotten in this paper. I got 2 fulls (one of which I made a mistake on) and 4 partials, none really worth more than 10 marks.
As you well know, many people get in with 1, 2 (and even more with 2, 1 I think). It sounds like you've got a high 2 at least, so don't give up!
11. Anyone got a link to the paper?
12. (Original post by 16Characters....)
Q1 and Q3 (Q1 is the one I screwed up). I didn't manage to finish Q7. I didn't see how to integrate 1/cos x(cos x + sin x) during the exam. Partials on Q6, Q8, Q5 also.
That's more like 3 fulls, given that your Q7 is ~17 marks.

(Original post by sweeneyrod)
As you well know, many people get in with 1, 2 (and even more with 2, 1 I think). It sounds like you've got a high 2 at least, so don't give up!
Hopefully, last year, only 11 out of 22 people were let in with 2, 1 - so not looking forward to that. sigh, my summer is doomed to worry.
13. (Original post by gasfxekl)
how much marks do you think iii of the binomial question (q5) would be worth?
Same as previous part, exact same idea except you use
Spoiler:
Show
(1+x)^(-m) and (1+x)^(m+N)
14. (Original post by Zacken)
Pretty horrid, It's unlikely that I'll get into Cambridge unless I get an S in STEP III to make up for the 2 I've gotten in this paper. I got 2 fulls (one of which I made a mistake on) and 4 partials, none really worth more than 10 marks.
That sounds similar to me. I found the whole experience quite hallucinogenic. I did 3 fulls (one with an error at the end), and 2 that should add up to a full mark-wise and one pathetic glance worth nothing, except perhaps 1 mark but I doubt it.
15. I did
1- Ballsed this one completely. Misread the question and assumed the tangents were normal therefore got a different condition on p and q therefore couldn't show they were on c2. Did the rest of the question though.
7- Everything right except that I forgot to change the limits in the last integral when i made a substitution
6- Did everything but iv)
8- Everything but the last part about the sum of r^-4
3- Everything. Didn't justify "at most 1 root" particularly well
11- got i) and showed the inequality but couldn't do the last part about alpha>beta

Any ideas on marks (especially for 1) would be infinitely appreciated.
16. (Original post by tridianprime)
That sounds similar to me. I found the whole experience quite hallucinogenic. I did 3 fulls (one with an error at the end), and 2 that should add up to a full mark-wise and one pathetic glance worth nothing, except perhaps 1 mark but I doubt it.
That sounds like a safe 1 to me, whereas I'm hovering over 2 fulls and 4 partials that might add up to 1.5 fulls.
17. It was quite an odd paper for me. I'm generally a Pure person, so i was most surprised when I decided to do 3 Applied questions. And both the statistics ones would you believe it, when statistics isn't my cup of tea at all
18. (Original post by sweeneyrod)
As you well know, many people get in with 1, 2 (and even more with 2, 1 I think). It sounds like you've got a high 2 at least, so don't give up!
I didn't get that - it seems more people get in with 1,2 than with 2,1. I know quite a few people do better in 3 than 2 but then why are the boundaries higher in 2? Am I missing something.

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19. (Original post by Hauss)
Same as previous part, exact same idea except you use
Spoiler:
Show
(1+x)^(-m) and (1+x)^(m+N)
lol i asked the number of marks, not how to do it...
20. (Original post by gasfxekl)
lol i asked the number of marks, not how to do it...
How you do it is kind of relevant to how many marks it is worth .
Probably ~6 marks.

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