Hellow guys, Welcome to my website, and you are watching Trigonometry - The Sine and Cosine Rules - GCSE and A-Level Maths. and this vIdeo is uploaded by I'm Stuck - GCSE and A-Level Revision at 2018-11-22T04:00:07-08:00. We are pramote this video only for entertainment and educational perpose only. So, I hop you like our website.