Brute forcing simultaneous equations involving Complex Numbers

So I have many students coming up to me and saying, “Mr Teng, How do you know which to substitute away or when to introduce when doing simultaneous equations for complex numbers?” [...]

2014 A-level H1 Mathematics (8864) Question 4 Suggested Solutions

All solutions here are SUGGESTED. Mr. Teng will hold no liability for any errors. Comments are entirely personal opinions. 4. (i) By Pythagoras’ Theorem, (ii) Perimeter When When , which is not [...]