singaporeolevelmathsquotient rule | singaporeolevelmaths http://www.singaporeolevelmaths.com Simple Tips for Better Maths Results! Thu, 05 Jan 2012 14:02:12 +0000 en hourly 1 http://wordpress.org/?v=3.0.4 A-Math: Differentiation Shortcut Lies In Pausing & Simplifying http://www.singaporeolevelmaths.com/2010/01/28/a-math-differentiation-shortcut-lies-in-pausing-simplifying/ http://www.singaporeolevelmaths.com/2010/01/28/a-math-differentiation-shortcut-lies-in-pausing-simplifying/#comments Thu, 28 Jan 2010 08:42:14 +0000 Ai Ling http://www.singaporeolevelmaths.com/?p=1782 Differentiation is a big thing in fact major chapter for all Secondary 4 ‘O’ level students.

Read all about the basics Differentiation techniques here. (Examples included) I would like to share one question from my A-Math Ultimate Leap Programme (weekly coaching class) which has 2 different approaches to solve it.

Example:

differentiation-qn

Very often, I notice students will jump into Quotient rule whenever a fraction is given. Just like this student here:

differentiation-qn-quotient-rule

May I suggest that you pause for 3 seconds to think about the approach. Ask yourself ‘Is there anything I can simplify?’

Here’s another student who pauses:

differentiation-qn-simplified

Notice this student spends his time simplifying before applying chain rule in differentiation.

I hope you enjoy this example. Both students are correct in their answers, which one do you prefer more? A or B?

]]> http://www.singaporeolevelmaths.com/2010/01/28/a-math-differentiation-shortcut-lies-in-pausing-simplifying/feed/ 2