O Level A Maths Paper 2 4018 / 02
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Come come, discuss, paper how?
almost as easy as paper 1, except for RV and the 4m functions question.
finally done with A-Maths! -
Paper generally very easy. I did not how to the second part for the RV qn. So lost two marks I guess.
Anyway, the 4 mark function is very easy only 2 steps and you can get the answer. The only problem is you need to think for sometime. -
functions GG
RV GG
KINERMATICS GG
COTY blah blha oso GG
fail dip dip liao...
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HAHAHAHAH! todays paper was so easy!
YAY!
can help to pull up my paper 1 grade
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lalala. 1 subject down! like 8more to go!
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HUH WTF.. 23rd Oct A maths paper finish le?
KNN, in my time, A Maths paper 2 was the last one ok.
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haha congrats you guys.
keep up to good work. its great to have a good start to the exams. the morale high is good.
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OH YES!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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That's the easiest RV i qn i ever did in my life
Function 1..yea 4 marks gone..but actually quite simple 1...Just sub X =3 in...
Much better than ytd's paper for me...ytd's paper was damn damn careless...hope can get A1 sia..but i heard normally for maths they'll raise the A1 cut-off...so..
Hope for the best -
Knn for my RV question last time they pull stunt sia. not the conventional vectors diagram one.
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Ours also not conventional...but made it easier insteadOriginally posted by stellazio:Knn for my RV question last time they pull stunt sia. not the conventional vectors diagram one. 
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want to check, early on there ws one question, about one curve and line intersect at 2 points, then find the length of the points. something like,
3y+2x = 12
y^2 = 4x - 8
i redo the qn after i finish, but not enuf time, want to check my original answer, is it (226)^0.5? (square root of 226) -
Forgot liaoOriginally posted by thehappybunny:want to check, early on there ws one question, about one curve and line intersect at 2 points, then find the length of the points. something like,
3y+2x = 12
y^2 = 4x - 8
i redo the qn after i finish, but not enuf time, want to check my original answer, is it (226)^0.5? (square root of 226) -
6 more to go...
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Loss of 20 over marks due to poor time management. I thought there's alot of time and did it at a slower pace. Until i reached the back of the paper.. Wasted.
RV was the rubbishy question i have ever done. Test your understanding of question only.
Go study chem loh. ~ -
y = (12 - 2x)/3Originally posted by thehappybunny:want to check, early on there ws one question, about one curve and line intersect at 2 points, then find the length of the points. something like,
3y+2x = 12
y^2 = 4x - 8
i redo the qn after i finish, but not enuf time, want to check my original answer, is it (226)^0.5? (square root of 226)
sub into second eq
((12 - 2x)/3)^2 = 4x - 8
(144 - 48x + 4x^2) /9= 4x - 8
144 - 48x + 4x^2 = 36x - 72
216 - 84x + 4x^2 = 0
x^2 - 21x + 54 = 0
Solve for x
-(-21) +/- sq root (441 - 4(54))/2
21 + sq root (225) / 2 almost equivalent to 36/2 or 21 - sq root (225)/2 almost equivalent to 6/2
edited mistake
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like that ah? then my answer should be quite close. heh
A-maths such a surprise, easy.
Now for chem -
Shouldn it be y= 4 - (2/3)x ?Originally posted by rainee:y = 12 - 2x -
yea u r right, i overlook the 3 at the bottom oopsOriginally posted by lpx88:Shouldn it be y= 4 - (2/3)x ?
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yeahOriginally posted by kct360:lalala. 1 subject down! like 8more to go!
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Yea i did it your way too..Originally posted by rainee:yea u r right, i overlook the 3 at the bottom oops -
just edited mistake, now the square root is a nice number liaoz...Originally posted by lpx88:Yea i did it your way too..
tis type of question very easy to make mistake haha
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hmmm..the paper...GG
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the paper is easy think this year A1 gonna be 80~90 range liao
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i get A2 i happy enough already