O-Level Additional Math

[mramk]

Guan Hui:

Hi parents, just wondering why is there not a thread for secondary school maths questions and decided to start on one.(inspired by mathsguru contribution to this community)


So... yup this is for Q&A for secondary school maths questions.

Please state the level of the question when posting the question for the convenience of knowing which method should be used to explain the answers.(e.g. Sec 1)

Hope it helps!

Hi Guan Hui, thanks for your service. Could you please help with below question:

prove the identity: cos(x).cot(x) + sin(x) = cosec(x). (O level A-Math)

Thank alot.

[wmd]

mramk:

prove the identity: cos(x).cot(x) + sin(x) = cosec(x). (O level A-Math)

Thank alot.

cos(x).cot(x) + sin(x)
=cos(x)*(cos(x)/sin(x))+sin(x)
=(cos(x))^2/sin(x) + sin(x)
=((cos(x))^2+(sin(x))^2)/sin(x)
=1/sin(x)
=cosec(x)

[YLH88]

Hi achemtutor,


Thank you!

[mathqa]

Bounty:

I am back again. Thank you for your all your help.

I have spoken to my daughter’s school Prinicpal. I have the option of doing the subject privately as an additional subject and the school will register her for the O Level exam through the school. This is what MOE also told me.
So now, could anyone recommend me a good teacher who can teach her the complete school curriculum on a one-to-one tuition at home (or any other suggestions)? And the rates of course. I live in Woodlands.

Hi Bounty,

I can give her a try. As a professional math trainer, I look forward to taking the challenge to help every student for a better change.

Some student hate math while others are scary of math. Some seriously lack the background of previous classes while others simply need a change in learning attitude (but making such a change is never simple though). These initial obstacles have to be dealt with before going to the next step which includes strategic theory review and practise questions. What does “strategic” mean? It means 2 things:
(i) most important subjects which carry high mark portions have to be carefully highlighted and addressed
(ii) the preparation need to be individualized to deal with particular background weaknesses of each student.

Indispensably, every student needs to know by heart the tips to identify, analyze a new question as a known question and thinking process to solve it.

Feel free to send your daughter in for a FREE workshop & an assessment test.

http://mathqa.blogspot.com/2010/11/free-revision-workshops-for-gce-o-level.html

http://mathqa.blogspot.com/2010/11/test-question-for-senior-olympiad.html

http://mathqa.blogspot.com/2010/11/sat-i-math-collection-of-medium-to-hard.html

[jackaljaysen]

Whoa so cheem! :shock:

[Muffins]

iFruit:

Muffins:

woah..... these questions making my head spin already :faint: :faint:

Welcome to the real world mate ! We have no Mohammads and Alis exchanging marbles or silly old mothers trying to pick up their daughters from the schools at constant speed every day here.

How, I wish, school would get easier as we advance in age.....

iFruit:

We just have beautiful x's and y's and before you blink sin As, cos Bs and Sec Cs.

I thought there was sine, cosine, and a tangent???? what's a Sec???

[Dharma]

Muffins:

iFruit:

[quote=\"Muffins\"]woah..... these questions making my head spin already :faint: :faint:

Welcome to the real world mate ! We have no Mohammads and Alis exchanging marbles or silly old mothers trying to pick up their daughters from the schools at constant speed every day here.

How, I wish, school would get easier as we advance in age.....

iFruit:

We just have beautiful x's and y's and before you blink sin As, cos Bs and Sec Cs.

I thought there was sine, cosine, and a tangent???? what's a Sec???[/quote]Hi Muffins,

sec A = 1/ cos A ...... (sec is short form for secant)

[tianzhu]

Hi


Just a quick survey,how do you find secondary one Maths?
Is it less demanding or easier than PSLE Maths?

Best wishes

[hashroop]

pls advise where can i get hold of Sec 2math exam papers(express) of top schools. Something like they have for primary school.

[ilovechamomile]

You can try Bras Basah Complex. I think there’s a shop that compiles exam papers of top schools and put out for sale.