How was E-maths paper 2?
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Originally posted by SBS n SMRT:
cannot. leave in mm lah, plus, your answer some use not enough sf, not 58.5 degree but is 58.0 degrees. degrees in 1 dp, not 3sf
yeah, all answers in degrees are to be left to 1 decimal place accuracy
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i think i got like 85 marks for the entire paper, i got an A2 for that
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maybe i can get 175/180 ba
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Good luck for amath
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Originally posted by qdtimes2:
Good luck for amath
you too, and everyone here, good luck for add maths
Binomial is giving me hell!
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luckily i mastered my trigo before the exam. my friends taught me some stuff then they themselves dunno how do some of the trigo
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Originally posted by SBS n SMRT:
cannot. leave in mm lah, plus, your answer some use not enough sf, not 58.5 degree but is 58.0 degrees. degrees in 1 dp, not 3sf
If they want it specifically in mm, they will say "leave your answers in mm" but they only stated "correct to nearest mm".
I just checked again, my answer is 58.5 degrees because I used sin BCA = 550/645, prolly you guys used another method.
As for the sets, I never said anything about null
A { 1, 4, 9, 16}
B { 3, 6, 9, 12, 15}
A compliment { 2, 3, 5, 6, 7, 8, 10, 11, 12, 13, 14, 15 }
A compliment intersect B =
3, 6, 12, 15
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ok lah,,,gd luck for tmr
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how do u guys get 10 min? my answer was 9min 58.5s
i use 105/100 x 570second then convert it to min and s
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Originally posted by Music-Life:
If they want it specifically in mm, they will say "leave your answers in mm" but they only stated "correct to nearest mm".
I just checked again, my answer is 58.5 degrees because I used sin BCA = 550/645, prolly you guys used another method.
As for the sets, I never said anything about null
A { 1, 4, 9, 16}
B { 3, 6, 9, 12, 15}
A compliment { 2, 3, 5, 6, 7, 8, 10, 11, 12, 13, 14, 15 }
A compliment intersect B =
3, 6, 12, 15
isnt that my answer lol
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Maximum number of marks that can be deducted for d.p. errrors is 1.
Maximum number of marks that can be deducted for s.f. errors is 1.
Forgetting to reject one answer or give two answers for the questions that involve square rooting a number, you will lose one mark for one answer missing/not rejected.
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As for how I found the paper, I think that it was a joke. Just like Emaths Paper 1.
I wouldn't be too happy about that if I were you, unless you were an RI or RGS student.
And I left the entire pentagon and semicircle question blank by accident. That's 12 marks gone in a flash. Sigh.
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Originally posted by Tanboonjoon 999:
how do u guys get 10 min? my answer was 9min 58.5s
i use 105/100 x 570second then convert it to min and s
wrong.
Its 570/95 X 100 -
Originally posted by Dejomel:
Maximum number of marks that can be deducted for d.p. errrors is 1.
Maximum number of marks that can be deducted for s.f. errors is 1.
Forgetting to reject one answer or give two answers for the questions that involve square rooting a number, you will lose one mark for one answer missing/not rejected.
===============================================================
As for how I found the paper, I think that it was a joke. Just like Emaths Paper 1.
I wouldn't be too happy about that if I were you, unless you were an RI or RGS student.
And I left the entire pentagon and semicircle question blank by accident. That's 12 marks gone in a flash. Sigh.
i left question 9 blank. Not much time left so i chiong for my best topic which was on Q 10
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Originally posted by ViewtyKU990:
6c should be range of x, not just the 2 numbers
2c(i) should be +-
9e leave in mm lol
Oh by the way, for question 6c, I'm afraid I do not exactly get what you meant by it should be a range of x.
6c) Use your graph to find the values of x in 1 </ x </ 6 for which 1/10 ( 60 - x^2 - 80/x) = 2
If what I interpret is right, I believe it only wants the values of x when the graph shows y being 2, and not a range of values, as only 2 points show that y is = 2 while the rest do not meet the requirements.
Nah, your answer was { 3, 6, 9, 12 } ^^
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it is 2 mark question, it is testing u on spotting y=2 and range, not just value,
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Originally posted by Music-Life:
Oh by the way, for question 6c, I'm afraid I do not exactly get what you meant by it should be a range of x.
6c) Use your graph to find the values of x in 1 </ x </ 6 for which 1/10 ( 60 - x^2 - 80/x) = 2
If what I interpret is right, I believe it only wants the values of x when the graph shows y being 2, and not a range of values, as only 2 points show that y is = 2 while the rest do not meet the requirements.
Nah, your answer was { 3, 6, 9, 12 } ^^
my bad typo D:
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i no take a maths tomorrow someone else make topic
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2 marks, 1 mark each point of x. Doesn't seem like spotting a range of y = 2, since the graph, or at least my graph, didn't have a whole straight line on y = 2
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Originally posted by Sgforum King:
i no take a maths tomorrow someone else make topic
everyone else lets go study a maths now, leave sgforum king alone tsktsk
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Originally posted by Music-Life:
2 marks, 1 mark each point of x. Doesn't seem like spotting a range of y = 2, since the graph, or at least my graph, didn't have a whole straight line on y = 2
you need to draw it out to get the answer hahas, because they said use your graph to find values of x in 1<x<6 for which the equation =2
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Anyone got a clue as to how the bell curve will be like this year?
I recall 85% of more would have been scraping an A1 last year .. with 50% being the national distinction rate.
What about this year?
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lol isn't there only 2 points that is y = 2?
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Originally posted by Music-Life:
lol isn't there only 2 points that is y = 2?
they say find valueS of x for the equation = 2
the equation given there is just nice y
so plot y=2
from the intersection points, thats ur value u should write
mistake spotten, i did wrongly, 1 mark fly away liao D:
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halo. my ans
22.5min
58.3%
18 .18/19
8 min 33sec
10min 0 sec
(5+p)(5-p)
5-p/3
-5-4x / (x+2)(x+2) (unsure)
29.2 (( forgot the +- thngy)
u= sq.rt of v2+2gh
10.1
11,0
65.4 ( intpretation of qn awaits further clarification)
33
57
123
( angle and angel . common and 57)
13
elemts are 3,6,12,15
8
( lazy type matrix , confident correct la)
p=1.0667
x is 2.35 and 4.85 ( range? awaiting further clari
qn is : use your graph to find the vaules of x in 1<=x <= 6 for which y=2 )
3.36 (3.2++)
y=2.5 x = 3.5 ( via diff. is 2.49 and 3.4)
dis is 2.753
2.75+2 = 4.75 (shown)
81.3
(shown)
2.4074
400 ( round of wrongly. hahah) wtffff
58
158
79.2
8.24 ( left in 3.sf . shoud be in 1 dec. )
9a) shown)
7+x
7-x
(eqn shown)
use calculator)
44mm.
6.3
1.24
5/18
4/9
5/9
x is 2.35 and 4.85 ( range? awaiting further clari
qn is : use your graph to find the vaules of x in 1<=x <= 6 for which y=2 )
in conclusion, still very easy. haha
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i thought question 9a) was suppose to show (10-x) and not (7-x)