Maths Paper 4 Discussion

[SuperXDE]

Okay , here is a nice clean short word that describes it , for me..

Sequence , Polygons , How many children and adults , Formula , WERE NIGHTMARES!!! :geek:

 

[T.S]

I only had a problem in the sequence question. The adult and child question was easy. Anyway the sequence question has only 6-7 marks which won't effect your grade much if you got other things right.

 

[shalado95]

"IF" u got other things right!! =P
I screwed up my paper! =(

 

[Ahmedattia24]

I had a problem with the last part of the probability question. I think the answer is 5.

Another problem was the number of sides of the polygon. I guess it is 18.

Yup, the sequence was a nightmare, I left the last page anyways.

If someone still remembers the vectors, can he/she please post the three answers. Thanks.

 

[larina]

for the vectors
i think it is -1/2 c + 1/2v
1/2c + 1/2 v
and.....
i think -1/2 c + 1/6v (smthing like tht)

 

[Giraffe195]

i used 1/3 of v for the questions involving the M. The M isn't half of the other line. The polygon one is correct. You had to use (n-2)*180 formula.

 

[Adham-amr]

sequences was a piece of cake..really easyy i think i lost only about 5-6 marks

 

[ZaidOwns]

EASIEST EXAM TILL NOW!!! dude this was ownage =D its all easy i did very well lost only 1 freaking mark, (yes only 1 im sure) the children adult is adult 35 and children 17 =D, last question the formula of it was 1/20 n (n-14) and the last question answer was 300, yes it was very easy exam vectors dont remember, but i think 1/2 (v-c) or 1/2 (c-v), it was so easy, polygons, i answered lol ask me about any question i did very well =D

 

[hala]

IT WAS VERY HARD I THINK IM FAILING :'(

 

[kazamodia]

the exam overall was easy, but there was a question about the interior and exterior angles of a polygon i did it wrong, and the last page i did all the question s but without steps would they give me marks for the correct answers???

 

[Ismail Breiwish]

It was great for me..I completed the sequences page, and was sure for all the questions.

 

[Ahmedattia24]

Whoever is sure about the vector questions please reply.
Because I considered CM as 1/2CV. I don't think CM/MV are equal to 1/3v, there is just no clue in the question.

 

[ZaidOwns]

it is as i said 1/2 (c-v) =D.

 

[Ahmedattia24]

Thanks.

The funny thing is, I forgot about "octagon," so instead I wrote zectagon!

 

[xiaotian]

ohhh the exam was ok... but some questions were difficult! the last page i left it in blank..and also the bit about transformations and the circle theorem one!!!! i think i could have done it better if they gave us a bit more time!

 

[xiaotian]

vectors was a shit!

 

[ZaidOwns]

last page equation was 1/20 n (n-14), its actaully easy, i did this in order to get 1/p x 3 (3 - q) = 2, and solved like leaner equation and last question answer (last part) was 300

 

[SoOona]

i hated the vectors part i never understood vectors and for the adult abd children i used simultanous equation but i dont remember my answer ... circe therom was the middle 1 centre o 96?? and umm i left the sequence page and the interior and exterior angles ques. 2 ... and a bit of the transformations was hard was the 2nd 1 shear or stretch?? and wht was the scale factor ??

 

[XPFMember]

i gave 2nd variant adult and children was 35 and 17 using simultaneous exam and yes circle was 96 it was stretch xaxis invariant scale factor was 3

 

[mr.ives_94]

Well for the last question (the formula) I got 1/2n (n-3). I triple checked it and it seemed to be right. I don't know how ZaidOwns got 1/20n (n-14). I found the probability one really easy but the one I hated was the bearings under the trigonometry. ahh... that question screwed me over. I also did not practise my transformation matrices, though I got the reflection one correct.
@kazamodia, they will give you one mark (A1) for the correct answer. Depends on the difficulty, but it is usually A1 only.