October/November 2017 IAL C34 Mathematics thread

Original post by oshadha

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

Reply 22

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.

Reply 23

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

Reply 24

what did you guys get for A in the vectors question

Reply 25

Maserati11

In solving when dy/dx=0, e^?? x sin^1/2 did u guys get sina= 1/2??

Reply 26

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!

Reply 27

Original post by chi3015

what did you guys get for A in the vectors question

A was (2 0 7).

Reply 28

Original post by oshadha

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?

Reply 29

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

Reply 30

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.

Reply 31

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?

(edited 6 years ago)

Reply 32

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

Reply 33

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

Reply 34

Original post by oshadha

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?

Reply 35

https://qualifications.pearson.com/content/dam/pdf/Support/Information-manual/2-Key-Dates-International.pdf
Results date are on page 5

Reply 36

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

Reply 37

Original post by oshadha

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

Reply 38

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

Reply 39