## 2010 GCE O-Level Additional Mathematics 4038 Paper 1 Worked Solutions

October 29, 2010Wei Jie 9 Comments »The GCE O-Level Additional Mathematics 4038 Paper 1 worked solutions are already uploaded on MathsGuidebook.com. If you have any comments, feel free to leave a comment below.

The solutions to the 2010 Additional Mathematics Paper 1 and Mathematics Papers 1 and 2 have been uploaded here:

Posted on October 29th, 2010 at 17:37

any error carry forward for q12?

Posted on October 29th, 2010 at 18:03

qn 11 (iii) must find the coordinate? Or can i just write when x=2 it is a maximun point.

qn 3 and 8i will i get the mark if i just write the range?

Posted on October 29th, 2010 at 23:39

@Woots. No idea but i didn’t find coordinates.

Posted on October 30th, 2010 at 12:41

Hi, I noticed that you did your question 4(i),(ii) answers in radian mode, hence the 2.5 and 0.15. Are you sure rate of change is done in radians?

I did them in degree mode, and my answers were

2.03, 0.122 (3s.f.)

Posted on October 30th, 2010 at 19:31

@Roy it needs to be done in radians. when the angle is given in terms of pi, it needs to be done as radians.

Posted on October 31st, 2010 at 22:24

for question 12 (iii), the 2 circles drawn am i right to say that both the circle have the same radius? if so, how can the radius for circle a be 5 and radius of circle b be square root 80?

Posted on October 31st, 2010 at 23:04

@Grace: Nope. Its not necessary that the 2 circles have the same radius. If you want proof of this, try drawing 2 circles with different radius, but making sure they intersect at 2 points. It can be done, and it should be sufficient proof that such a case is possible.

Posted on November 1st, 2010 at 20:19

Hey people, is the paper tough? If it is tough it would moderate lower to let those who fails the paper pass? IS IT?!

Posted on November 1st, 2010 at 22:13

@Nameless: If its tough yes, but i think moderation should be standard this time..