Archives

Please do check through the solutions on your own, especially for questions that we did not have chance to properly discuss during class. You may whatsapp me too if you have a burning question. [...]

(i) If they intersect, then for some Solving with GC, we have . Thus, the lines intersect. (ii) Equation of plane: (iii) Required distance (iv) Area of quadrilateral Back to June Revision Exercise 8.

(a) (b) If the plane contains the line , the is parallel to : and the point lies in the plane : Alternatively, you may consider that : — (1) — (2) Solving, Back to June Revision Exercise 8.

Below are the solutions for the June Revision Set 8 (Vectors) Do let me know if you don’t understand the solutions. Thanks Question 1 Question 2 Question 3 Question 4 Question 5 Question 6 [...]

So lets see how to resolve inequalities that a bit longer than usual. and or and . Thus,

Here is a very very interesting question involving probability that a student saw in her tutorial and asked me. Here it is 🙂 A student is concerned about her car and does not like dents. When she [...]

Below is a list of questions that students should take note of! The questions are not there due to copyright issues. But linked are the suggested solutions by KS. 🙂 2016 P1: 3, 10, 11 2016 P2: 4b [...]

The positive integers and satisfy What is the value of ?

This question was sent in by a student, which I think is rather interesting given 2015 A’levels P1 Q3 had something similar. Use a definite integral to evaluate , given your answer correct [...]

All possible straight lines joining the vertices of a cube with mid-points of its edges are drawn. At how many points inside the cube do two or more of these lines meet?