(I/GCSE) Solving equations involving sine, cosine and tangent is easy when there are video lessons to help you learn! This video is designed to help with your GCSE and IGCSE maths revision. It can also be used for different exam boards such as Edexcel, OCR, WJEC, AQA, OCR and O Levels. Produced by quicksense.org, this video on solving equations involving sine, cosine and tangent is part of a bigger series covering every single learning objective. What is QuickSense? QuickSense is everything you need to get an A+ in IGCSE Maths. This is done through questions, explanations & analytics.