Sugested solution and marking scheme to 2017 HKDSE Maths
Compulsory Part Paper 1
Not only solution and marking, but also clear explanation and advices. You can learn "to write or not to write".
Compulsory Part Paper 2
Not only answers, but also clear solution and tactics. You can learn "to do or not to do".
Extended Part Module 2
Let you know how to start from routine works, and then follow the hints to solve the hardest part.