## O-Level Additional Math

- PiggyLalala
- KiasuGrandMaster
**Posts:**4053**Joined:**Tue May 24,**Total Likes:**23

### Re: Secondary School Mathematics

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
**Posts:**30**Joined:**Fri Mar 05,

### Re: Secondary School Mathematics

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

### Re: Secondary School Mathematics

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.

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.

### Re: Secondary School Mathematics

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

### Re: Secondary School Mathematics

Hi FrekiWang,

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

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

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

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!

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!

### Re: Secondary School Mathematics

factorisation

Need help for this qn.

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

Tq

Need help for this qn.

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

Tq

### Re: Secondary School Mathematics

note that 2s-3q=-(3q-2s)Herbie wrote:factorisation

Need help for this qn.

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

Tq

(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
- GreenBelt
**Posts:**130**Joined:**Tue Mar 01,**Total Likes:**8

### Re: Secondary School Mathematics

(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

=(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

### Re: Secondary School Mathematics

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.

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.