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This problem seem to bug many students, especially J1s who are doing Maclaurin’s series now. Many of the students are not sure how to find the coefficient of . They wonder how to [...]

Many students seem to know how to solve a Min/ Max problem easily but do not understand. I hope this gives them some insights into Min/ Max problem. Firstly, what is a Min/ Max problem? It is [...]

The GP Essay – Writing the conclusion Ah, the conclusion—the grand finale, the icing on the cake, the cherry on top, the [...]

The GP Essay – Writing the essay body Compared to the introduction, the essay body is easier to develop because you only need to be straightforward and concise in your writing. Every paragraph in [...]

All solutions here are SUGGESTED. Mr. Teng will hold no liability for any errors. Comments are entirely personal opinions. (i) Depth drilled on the 10th day Total depth (ii) Thus, it takes 40 [...]

This is question that was tested in ACJC H2 Math Prelim P1 2015. A few of my students know how to answer it but were uncertain how to express it. Most students were concerned with (ii) of the [...]

Okay, many students get confused over when to do what for transformation. I thought I should try to clarify a bit. First of all, it doesn’t matter whether you translate or scale first! x [...]

This is an interesting and simple question. Putting the answer here will take the fun out of figuring this summation out. I will advice/ hint that you look at your standard series in MF15 [...]

All solutions here are SUGGESTED. Mr. Teng will hold no liability for any errors. Comments are entirely personal opinions. (i) (ii) (a) When When (b) When Reject since when (c) From the graph, As [...]

All solutions here are SUGGESTED. Mr. Teng will hold no liability for any errors. Comments are entirely personal opinions. (i) (ii) (iii) since KS Comments: There are other alternative methods to [...]