Hi, I am Mr Lim . Professional for math teaching. I am passion for teaching . Any questions could raise concern and will help you for the question. Overall, I have 4 years teaching in UEC, SPM and IGCSE course as I am part time tutor and helped around 300 students over 4 years. I am happy for helping the student to improve and difficult for the math problem. If you have questions please do not hesitate to raise, and I will explain the process and steps to get the answer. Thank you.