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1. The two empty seats have to be considered as two identical objects, hence ways. 2. 3. or 4. 5. (a) 5. (b) ; 6. (i) or 6. (ii) 6. (iii) Case 1: 4 distinct letters. Case 2: Exactly 3 distinct [...]

All solutions here are suggested. Mr. Teng will hold no liability for any errors. Comments are entirely personal opinions. Numerical Answers (workings/explanations are after the numerical [...]

All solutions here are suggested. Mr. Teng will hold no liability for any errors. Comments are entirely personal opinions. Sorry, due to copyrights issues, I cannot share the paper. Numerical [...]

The following are the links to the 2020 A-level H2 Mathematics (9758) suggested solutions by Mr. Teng. All solutions here are suggested. Mr. Teng will hold no liability for any errors. Comments [...]

Its been awhile since we last posted. And it is good to know that JC1s have all been well inducted or settled into their schools. Of course, I do hear that many schools are severely overcrowded [...]

This is a question from TJC Promotion 2017 Question 10. Thank you Mr. Wee for sharing. Mr. Scrimp started a savings account which pays compound interest at a rate of r% per year on the last day [...]

Here is another question that is from CJC H2 Mathematics 9758 Prelim Paper 1. Its a question on differentiation. I think it is simple enough and tests student on their thinking comprehension [...]

Upon request by some students, I’ll discuss a few trigonometry formulae here and also some of their uses in A’levels. I’ve previously discussed the use of factor formulae here [...]

Today, I’ll share a little something about Integration by Parts. I want to share this because I observe that several students are over-reliant on the LIATE to perform Integration by Parts. [...]

Thinking@TheCulture is a series of questions that we, as tutors feel that are useful in helping students think and improve their understanding. Thinking Math@TheCulture is curated by KS. More of [...]