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# October/November 2017 IAL C34 Mathematics thread watch

Urm, i think I made a quadratic equation to find U or whatever the scalar parameter was and once i found U i subbed in to find possible C coordinates. Got some decimals/fractions so not too sure myself but i think the method is correct
I did nothing of that sort lol, guess those 5 marks are gone. I ended up getting C as (62, 34, -1) something.
You can never be sure tbh. Do you think the boundary will be high? The highest I've seen it go is 115. The easier the paper the higher the boundaries But i dont think this is the easiest paper. What ya reckon? I think 108-110 maybe?
i think boundary would be about 107-110
3. (Original post by chi3015)
in the last part of the question 11 what did you guys get for t and dh/dt
9 if I recall correctly.
4. (Original post by Fasih178)
You weren't able to obtain an answer?
i got answers but with a wrong method so they are orobably wrong
5. what did you guys get for A in the vectors question
6. In solving when dy/dx=0, e^?? x sin^1/2 did u guys get sina= 1/2??
7. (Original post by Fasih178)
I did nothing of that sort lol, guess those 5 marks are gone. I ended up getting C as (62, 34, -1) something.
Ahah i could be wrong as well, i guess we wont know till someone posts a model answer or on results day i guess!
8. (Original post by chi3015)
what did you guys get for A in the vectors question
A was (2 0 7).
Ahah i could be wrong as well, i guess we wont know till someone posts a model answer or on results day i guess!
I doubt there'll be any model answers for the Oct/Nov session papers, though I hope that's not the case. As for the results day, do you know when that is?
10. What do you think it was the answer of question 2 ? It was completely wierd numbers for me like the 4rth root of 9 one of the x coordinates of the turning points
11. (Original post by Ahmed__Salah)
What do you think it was the answer of question 2 ? It was completely wierd numbers for me like the 4rth root of 9 one of the x coordinates of the turning points
That's completely correct, 4 root of 9 is basically square root of 3.
12. (Original post by Fasih178)
That's completely correct, 4 root of 9 is basically square root of 3.
What was the question about? Is it the one where you had to use implicit differentiation and make an equation for x or y and find the turning points?
13. (Original post by Ahmed__Salah)
What do you think it was the answer of question 2 ? It was completely wierd numbers for me like the 4rth root of 9 one of the x coordinates of the turning points
yeah +/- that were the 2 x coordinates then we get y but that is right
14. (Original post by Fasih178)
I doubt there'll be any model answers for the Oct/Nov session papers, though I hope that's not the case. As for the results day, do you know when that is?
results day is about mid feb althought bilal ahmed will probably upload it by mid decembee
Ahah i could be wrong as well, i guess we wont know till someone posts a model answer or on results day i guess!
do you have any clue what sort of answers you got for C?
16. https://qualifications.pearson.com/c...ernational.pdf
Results date are on page 5
17. (Original post by chi3015)
yeah +/- that were the 2 x coordinates then we get y but that is right
I cant remember my answers, but did you guys make an equation of y in terms of x or vice versa. And substiute it into the original equation to get the coordinates
I cant remember my answers, but did you guys make an equation of y in terms of x or vice versa. And substiute it into the original equation to get the coordinates
yes that is what i did
19. (Original post by chi3015)
yes that is what i did
Phew thats good to hear. Lol all of these answer finding has me nervous af. Guess all we can do is wait for results, i dont remember my answers mostly. Just the methods
20. Btw when examiners mark, if the end answer is wrong but the simplification and method used is correct and its a careless mistake or error carried forward. Do they award even a fraction of the marks? based on the working?

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Updated: November 27, 2017
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