Mathematics

After teaching H2 Mathematics for so many years and sharing my suggested solutions post A-levels, I thought I collate them nicely and type them all neatly here in Latex. 🙂 Please be kind to be [...]

All solutions here are SUGGESTED. Mr. Teng will hold no liability for any errors. Comments are entirely personal opinions. Please kindly comment at the specific questions should you have any questions.

Many of my students seem to be impressed with my method of doing partial fractions, and after I explain to them, I think they all can conclude that it is nothing more than kindergarten math [...]

This is question from an AJC prelim exams, I’m not really sure which year. The question prompts students if there will be a change in the r-value should, the scientists change the unit of [...]

Some of my student asked me how good is an estimate and how do we measure it up. Let us first consider the difference between an estimate and estimator. We are all familiar with the following [...]

I’ve been teaching H2/ H1 Mathematics for 6 years and the past year papers clearly indicates that they are interested in finding out if students do understand their learning. In my opinion, [...]

This is one of my favourite formula as it combines many things. We already saw how and was linked in the polar form of a complex number. But here, we related the number zero and one. It is quite [...]

This is a classical mathematical fallacies. At hindsight, everything looks perfectly fine. The mistake is in line 5. This is quite similar to the one we discussed previously. We took the [...]

All solutions here are SUGGESTED. Mr. Teng will hold no liability for any errors. Comments are entirely personal opinions. (i) The mean number of absences per day is constant. (ii) Let A be the [...]

All solutions here are SUGGESTED. Mr. Teng will hold no liability for any errors. Comments are entirely personal opinions. (i) Required Probability (ii) Required Probability (iii) Case 1: 2 same [...]