O-Level Additional Math

PSLE marks the graduation of Primary school students and their entry into Secondary schools as teenagers. Discuss all issues about Secondary schooling here.
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PiggyLalala
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Re: Secondary School Mathematics

Post by PiggyLalala » Thu Jun 02, 2011 10:09 pm

What kind of assessment books are you looking at? Topical or paper by paper? Are you looking for more challenging questions? Or are you looking for one that focus more on drill and practice.

hometutors.sg
OrangeBelt
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Re: Secondary School Mathematics

Post by hometutors.sg » Mon Jun 06, 2011 2:04 pm

JadeDry wrote:I currently use "New Syllabus Mathematics" (8th Grade) books, and would appreciate if you could recommend additional good quality publications.

Thanks in advance.
A good tutor / mentor would be able to select what is good for the student.

elkniwt
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Re: Secondary School Mathematics

Post by elkniwt » Tue Jun 07, 2011 10:53 pm

Hi,

For compound interest. If the principal amt is invested for a non-integral no. of the compounding period, how is it computed?

Amt = $1000
Interest = 1% per annum compounded yearly
Invested for 2yr and 3mths
Final amt = (1.01)^2 x 1000
OR
Final amt = (1.01)^2.25 x 1000 ??

Thanks.

FrekiWang
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Re: Secondary School Mathematics

Post by FrekiWang » Thu Jun 09, 2011 10:14 am

Final amt = (1.01)^2.25 x 1000 is the correct answer at secondary level.

elkniwt
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Re: Secondary School Mathematics

Post by elkniwt » Thu Jun 09, 2011 6:39 pm

Hi FrekiWang,

Thanks for your answer! In real life, the non-integral is not counted right?


happytoad
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Re: Tutor Guanhui-Ask Your Secondary Mathematics Questions H

Post by happytoad » Mon Jun 13, 2011 3:51 pm

Hi Guan Hui,
Can you pm me your email address? I would like to upload a file, but was not able to do it via the post here.

Thanks!

Herbie
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Re: Secondary School Mathematics

Post by Herbie » Tue Jun 14, 2011 8:08 pm

factorisation

Need help for this qn.

(6r-7t)(3q-2s)+(2s-3q)(3r-2t)

Tq

FrekiWang
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Re: Secondary School Mathematics

Post by FrekiWang » Tue Jun 14, 2011 8:25 pm

Herbie wrote:factorisation

Need help for this qn.

(6r-7t)(3q-2s)+(2s-3q)(3r-2t)

Tq
note that 2s-3q=-(3q-2s)
(6r-7t)(3q-2s)-(3q-2s)(3r-2t)
=(3q-2s)[(6r-7t)-(3r-2t)]
=(3q-2s)(6r-7t-3r+2t)
=(3q-2s)(3r-5t)

Concerndad
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Re: Secondary School Mathematics

Post by Concerndad » Tue Jun 14, 2011 8:32 pm

(6r-7t)(3q-2s)+(2s-3q)(3r-2t)
=(6r-7t)(3q-2s)-(3q-2s)(3r-2t)
=(3q-2s)[(6r-7t)-(3r-2t)]
=(3q-2s)(6r-7t-3r+2t)
=(3q-2s)(3r-5t)

Rgds,
Concerndad

suiyuan
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Re: Secondary School Mathematics

Post by suiyuan » Sat Jun 18, 2011 10:47 am

Secondary Two Maths

Hi

Solve this equation
(x-2)^2 = 3(2x-3)(2-x)

(x-2)^2 means (x-2) to the power of 2.

Please help.

Thank you.

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