A shorter solution , anyone ?

Wow , didn't think of that , at all .

I did it this way , forming two equations :



I was scratching my head , thinking to myself , how do the parallel lines help in any way ? It's strange that SPM Maths would include distractors in the questions , most of the time the information provided are to help students get to the solution . This is from the July Paper , 2013 .

This post has been edited by maximR: Aug 2 2013, 03:21 PM

I'll stick to the bolded parts . Thank you .

Photocopy from your friends if possible . Real SPM Papers aren't usually uploaded online .

I'll love a detailed response too , but most seniors say the same stuff : Read and memorise . Memorise answer schemes , especially for essay .

I'd normally read , understand , and then try to remember the points by drawing / writing them out on a piece of paper using coloured pens ( I'm a visual learner , I need coloured diagrams ) . And then exercises , then look at the answers .

So far it had been good -- for the first time , I got an A+ for Biology mid-term exam .

But is this enough for the trials ? I'm afraid not .
Because I haven't touched a Biology book for months , and I'm rusty . And there's one whole Reproduction chapter left untouched .

What's your average score for Biology ?

I probably have spent more time on Trigonometry than any other Maths concepts .

For some , yes . For Negeri Sembilan , no .

Here's an interesting question for you to try out :

Given that the number of ways of selecting 2 objects from "n" different objects is 10, find the number of "n".

Does any of you have We Chat or something along the lines ? It'll be easier to ask questions , maybe we could have a group or something , if you don't mind disclosing your ID .

How many subjects are you done with ? I mean the syllabus .

So , the (n-2)(n-3) ... (3)(2)(1) at the numerator cancels with (n-2)! below ?

Interesting . I was thinking how to manipulate n! , forgot about the general case , n! = n(n-1)(n-2) ... 3x2x1 .

For ?

Physics , yes . The rest , no . Especially Biology .

I'm sure .

I don't think there would be comparison ( essay ) questions in Physics . For modification and choosing the best design essay questions , I would always draw tables .

For Biology , you can draw tables . For Chemistry , I would compare one point at a time , in separate paragraphs .

Sejarah . You're done with it . Amazing .

People say it's Salts . Some say Carbon Compounds and Redox are equally hard . For me , both came pretty naturally . I finished Redox in a couple of days and Carbon Compounds in a week without a teacher ( during the holidays , I didn't want to waste time ) . So they are pretty manageable . So far I'm done with Chemistry , I'm quite relieved .

Trigonometric Functions caused some problems ( trigonometric identities part ) .

Earth as a Sphere took long for me to master too . I guess everyone has different set of problems .

This post has been edited by maximR: Aug 5 2013, 02:00 PM

The first one .

By the way , for Moral : A Guru Cemerlang said that you musn't repeat the CONTOH/HURAIAN in Moral essay , and you must think of new ideas for C/H , and you cannot take from the situasi .

Is this how your teacher taught you ?