Edexcel IGCSE Mathematics A [6th Jan 2015]

Scroll to see replies

Reply 20

MouseyBrown

Original post by WhizzKidhehe:)

What did you guys get for the last question by any chance?

I didn't actually do it......can't remember the exact numbers, but you use the cosine rule.

Reply 21

WhizzKidhehe:)

Original post by MouseyBrown

I didn't actually do it......can't remember the exact numbers, but you use the cosine rule.

Yup... but answer came to a long decimal and i got something like 2.60 which is completely wrong...

Reply 22

turn-to-page394

Original post by annag98

6.25 but everyone else seemed to get 3.5 ugh

Original post by WhizzKidhehe:)

What did you guys get for the last question by any chance?

Original post by MouseyBrown

I didn't actually do it......can't remember the exact numbers, but you use the cosine rule.

Used the cosine rule - it cancelled out - then realised the trick after the exam.... too late now...
but I guessed it (trial and error) and got 2.5? It seemed to work....

Argh, this exam....

Reply 23

MouseyBrown

Original post by WhizzKidhehe:)

Yup... but answer came to a long decimal and i got something like 2.60 which is completely wrong...

Well at least you will get something for working out, unlike me who messed around aimlessly with the stupid sin rule.

Reply 24

WhizzKidhehe:)

Original post by turn-to-page394

Used the cosine rule - it cancelled out - then realised the trick after the exam.... too late now...
but I guessed it (trial and error) and got 2.5? It seemed to work....

Argh, this exam....

Yeah, i worked it out after the exam -___-
Hopefully, 4h ill be a lot easier :P

Reply 25

WhizzKidhehe:)

Original post by MouseyBrown

Well at least you will get something for working out, unlike me who messed around aimlessly with the stupid sin rule.

Dw, I tried to use that as well hehe but i wrote random stuff and I managed to factorise wrong in the exam :/ but its done now... I think the grade boundaries will be fairly low- i reckon mid to high 70 or maybe low 80 for A*

Reply 26

MouseyBrown

Original post by WhizzKidhehe:)

Yeah overall I feel alright. Got good grades on my mocks and overall this didn't feel much worse, just more difficult. Good luck on 4h. Let us know what you reckon!

Reply 27

WhizzKidhehe:)

Original post by MouseyBrown

Yeah overall I feel alright. Got good grades on my mocks and overall this didn't feel much worse, just more difficult. Good luck on 4h. Let us know what you reckon!

You too... and to anyone else taking it- good luck hehe :smile:

Reply 28

turn-to-page394

Original post by WhizzKidhehe:)

Yeah, i worked it out after the exam -___-
Hopefully, 4h ill be a lot easier :P

._____. Life. Argh. Pain. Hate it when that happens and you just want to facepalm for not realising the answer earlier...

Yeah, hopefully. :smile:

Although there quite a lot of topics that weren't covered in this paper... :/
Good luck. :smile:

Reply 29

wizardwonder123

For question:
1 - i got 7200 yens
2 - put in calculator
3 - factorising etc.
4 - area of shape=something like 216
5 - total angles=900 degrees
- angle x =25.7 degrees

the bottle question - 20.2cm

proportion question - 1.25
thats all i can remember

Reply 30

annag98

Original post by wizardwonder123

for question:
1 - i got 7200 yens
2 - put in calculator
3 - factorising etc.
4 - area of shape=something like 216
5 - total angles=900 degrees
- angle x =25.7 degrees

the bottle question - 20.2cm

proportion question - 1.25
thats all i can remember

same there is hope for us all

Reply 31

annag98

Original post by wizardwonder123

maybe you will remember some if i spark a question. for the differentiation did you get the co-ordinates 2,3 and the x value range as 0.5 ?

Reply 32

MouseyBrown

Original post by annag98

same there is hope for us all

Same. That bottle question is the perfect example of why this paper was hard. It's a doable question, but for a number 5 or whatever it was tricky.
Normally the first few are things like 'divide 2 by 2 on your calculator and write down all the numbers it displays'.

Reply 33

annag98

Original post by MouseyBrown

they literally are omg hahaha i found the bottle one pretty easy bc we have done a lot similar in lessons but i dont know why, i just looked at every question and wanted to kms

Reply 34

WhizzKidhehe:)

For the range of x values in the differentiation question, i got 2/3<x<2...did anyone els get the same?
Please say yes haha...

Reply 35

joodaa

Does anyone remember what they got got the cone question or the line equation question?

Reply 36

sarah_j_jane

Yes! phew that took me ages.
But for the range i got (2/3)<x<2 i dont even know what that means :/ i was just taught it.

Posted from TSR Mobile

Reply 37

TeeEm

CAN SOMEONE TELL ME IF THIS PAPER WAS HARD?

honest answers, no exaggerations please.

I had 2 students on it and I have not seen the paper.

Reply 38

aeroline1999

Original post by WhizzKidhehe:)

For the range of x values in the differentiation question, i got 2/3<x<2...did anyone els get the same?
Please say yes haha...

Yep that's what I got too. I got worried cos 1 person said you had calculate rpthe range value ie 2-2/3= 1 1/3 but most ppl put the range down like that :smile:

Reply 39

aeroline1999

Original post by wizardwonder123

I'm so annoyed with myself cos on the second last question with the cone I got everything right until the last step! I found that the radius was 8 and used pythag to get length as 17. But for some reason when I calculated the curved surface I got something like 176. And I have no idea wat I did to get it so wrong cos afterwards I tried to see if I inserted wrong numbers into the pi times radius times length. But nothing came close! It's so annoying cos it was 5 easy marks lost! The correct answer was 427.

idk maybe I did get it right and I just rembered a different answer to wat I put? I think ill prob get at least 3 method marks tho.

how did you find that question?