How was E-maths paper 2?
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i think quite easy
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Many times easier than paper 1.
I screwed up the part on conversion of formulas. forgot to put in +/-. I think the determining factor lies on paper 1, which is the tougher of the 2 papers.
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i prefer paper 1 cause lesser trigo.
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fucking easy
enuff said.
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okay.. harder than paper 1
the toughest question is the pentagon figure thing
i forgot to reject the x = 40++, dunno lose how many marks ..
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Yea easier than paper 1.
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I also careless. 2b, express in simplest form, I went and expand too much, then give me a non fraction but no time to change.
2c, forgot to put the +/- sign when expressing u in terms of g, h, v
5a, forgot that 1 is perfect square -_-
btw, got this question my friends are not agreeing with each other. question 8bii. Find the greatest possible angle of elevation of D from a point on BC. What was your answer? How did you get it?
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i think is around the same standard. i managed to solve the pentagon question.
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I think I write 8.2
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hmm for the greatest angle of elevation. i think i got 8 . something. i find the shortest distance then use tan inverse to get it
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Ok good (: thats what I did. Dunno why some of my friends went and took the middle and BC, saying thats the shortest distance.
Anybody wrote down answers? lets compare. I'll put my answers up once I get things sorted out.
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Originally posted by qdtimes2:
okay.. harder than paper 1
the toughest question is the pentagon figure thing
i forgot to reject the x = 40++, dunno lose how many marks ..
lol i aced the pentagon fiqure 1
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i written mine down. later i put here ba.
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My Answers for GCE 'O' Level Paper 2
1a(i) 22.5 minutes a(ii) 58 1/3%
b(i) 18 18/19 km/h (ii) 8 minutes 33 seconds (iii) 10 minutes 0 seconds
2a(i) (5-p)(5+p) (ii) (5-p)/3
b -(4x+5)/(x+2)^2
c(i) +- 20.7 (ii) +- root of (v^2 +2gh)
3a 10.1m
b(i) 10.9m (ii) 45.4degrees
4a(i) 33 degrees (ii) 57 degrees (iii) 123 degrees
b Show
c 13cm
5a(i) Venn diagram (ii) {3,6,12,15} (iii) 8
b(i) (25 15) (ii) (75 165)
(10 30) (110 80)
(iv)(a) (700) (iv)(c) (13.50)
(650)
6a 1.07
d gradient +-10% from 3.26
e y= 2.5 when x = 3.4
7a 2.75cm
c 81.3cm
e 2.40cm^2
8a(i) 399m (ii) 58.0 degrees (iii) 158.0degrees
b(i) 79.2m (ii) 8.2 degrees
9b(i) (7+x) cm (ii) (7-x) cm
d x=2.18 or x =45.82 (2decimal place)
e Reject x = 45.82, diameter 44mm
10a(ii) (a) 6.3 marks (ii)(b) 1.24 marks
b(ii)(a) 5/18 (ii)(b) 4/9 (ii)(c) 5/9
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you guys are sick.
paper 1 was easier
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post yours here want to check whether correct or not lols
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Originally posted by Daisuke-kun:
you guys are sick.
paper 1 was easier
i feel that both papers easier than this year PSLE
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paper 2 was manageable, okays. Should be able to get A1........
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1ai) 22 minutes 30 seconds
1aii) 58.3%
1bi) 18.9km/h
1bii) 8 minutes 33 seconds
1biii) 10 minutes
2ai) (5 + p)(5 - p)
2aii) 5-p / 3
2b) wrong
2ci) 20.7
2cii) wrong, answer +/- sqrrt v^2 + 2gh
3a) 10.1 m
3bi) 10.9 m
3bii) 45.4 degrees
4ai) 33 degrees
4aii) 57 degrees
4aiii) 123 degrees
4c) 13 cm
5aii) { 3, 6, 12, 15 }
5aiii) wrong, answer 8
Read in top left, top right, bottom left, bottom right form
5bi) 25, 15, 10, 30
5bii) 75, 165, 110, 80
5biii) number of adult and number of children from monday to saturday
5biva) 700, 650
5bivb) Total amount for morning and total amount for afternoon every weekday
5bivc) 13.50
5bivd) Total amount in dollars for every weekday
6a) 1.07
6c) 2.35, 4.90
6d) 3.10
6e) 3.40
7a) 2.75 cm
7c) 81.3 cm
7e) 2.39 cm^2
8ai) 399 m
8aii) 58.5 degrees
8iii) 158.5 degrees
8bi) 79.2 m
8bii) 8.19 degrees
9bi) ( x + 7 ) cm
9bii) ( 7 - x ) cm
9d) 2.18 cm or 45.82 cm
9e) 4.40 cm
10aiia) 6.3
10aiib) 1.24
10biia) 5/18
10biib) 4/9
10biic) 5/9
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Originally posted by Music-Life:
1ai) 22 minutes 30 seconds
1aii) 58.3%
1bi) 18.9km/h
1bii) 8 minutes 33 seconds
1biii) 10 minutes
2ai) (5 + p)(5 - p)
2aii) 5-p / 3
2b) wrong
2ci) 20.7
2cii) wrong, answer +/- sqrrt v^2 + 2gh
3a) 10.1 m
3bi) 10.9 m
3bii) 45.4 degrees
4ai) 33 degrees
4aii) 57 degrees
4aiii) 123 degrees
4c) 13 cm
5aii) { 3, 6, 12, 15 }
5aiii) wrong, answer 8
Read in top left, top right, bottom left, bottom right form
5bi) 25, 15, 10, 30
5bii) 75, 165, 110, 80
5biii) number of adult and number of children from monday to saturday
5biva) 700, 650
5bivb) Total amount for morning and total amount for afternoon every weekday
5bivc) 13.50
5bivd) Total amount in dollars for every weekday
6a) 1.07
6c) 2.35, 4.90
6d) 3.10
6e) 3.40
7a) 2.75 cm
7c) 81.3 cm
7e) 2.39 cm^2
8ai) 399 m
8aii) 58.5 degrees
8iii) 158.5 degrees
8bi) 79.2 m
8bii) 8.19 degrees
9bi) ( x + 7 ) cm
9bii) ( 7 - x ) cm
9d) 2.18 cm or 45.82 cm
9e) 4.40 cm
10aiia) 6.3
10aiib) 1.24
10biia) 5/18
10biib) 4/9
10biic) 5/9
6c should be range of x, not just the 2 numbers
2c(i) should be +-
9e leave in mm lol
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let me pharse it this way
FUCK IT!
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yeah, meant that
9e not required to leave in mm. Just said closest mm, can leave in cm.
hey theres the part on 5aii, why did you put 3, 6, 9, 12? compliment of a leh.
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my bad -
Originally posted by Music-Life:
yeah, meant that
9e not required to leave in mm. Just said closest mm, can leave in cm.
hey theres the part on 5aii, why did you put 3, 6, 9, 12? compliment of a leh.
its not a null set, it means anything outside of a, which intersect with b.
so therefore those part that is in outside of a which intersect with b is the 4 number as shown
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Originally posted by Music-Life:
yeah, meant that
9e not required to leave in mm. Just said closest mm, can leave in cm.
hey theres the part on 5aii, why did you put 3, 6, 9, 12? compliment of a leh.
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