The Cosine Rule | Grade 7 Maths Revision | GCSE Maths Tutor

A video revising the techniques and strategies for using the cosine rule for side lengths and angles. This video is part of the Pythagoras & Trigonometry module in GCSE maths, see my other videos below to continue with the series. Revision Videos: The Entire 9-1 GCSE Maths Exam in only 2 hours!! Higher and Foundation Revision -    • Everything You Need To Pass Your GCSE Math...   Everything for a Grade 6-9 in your GCSE Maths Exam! Higher Maths Exam Revision | Edexcel AQA & OCR -    • Everything for a Grade 6-9 in your GCSE Ma...   Pythagoras and Trigonometry Series: All of Trigonometry in 20 Minutes!! Foundation & Higher Grades 4-9 Maths Revision | GCSE Maths Tutor -    • All of Trigonometry in 20 Minutes!! Founda...   Part 1 - Pythagoras -    • Pythagoras Theorem | GCSE Maths Tutor   Part 2 - Trigonometry (Side Lengths) -    • Trigonometry - Using SOHCAHTOA for Side Le...   Part 3 - Trigonometry (Angles) -    • Trigonometry - Using SOHCAHTOA for Angles ...   Part 4 - Finding the Exact Values (Higher Only) -    • How To Find The Exact Trigonometric Values...   Part 5 - Sine Rule (Higher Only) -    • The Sine Rule | Grade 7 Maths Revision | G...   Part 6 - Cosine Rule (Higher Only) -    • The Cosine Rule | Grade 7 Maths Revision |...   Part 7 - Area of a Triangle (Higher Only) -    • Area of any Triangle using Sine | Grade 7 ...   Part 8 - Proving the Trigonometric Rules (Higher Only) -    • Further Trigonometry | Proving The Sine Ru...   Part 9 - Circle Sectors with Trigonometry (Higher Only) -    • Circle Sectors with Trigonometry | Grade 7...   Part 10 - 3D Trigonometry (Higher Only) -    • The 5 Hardest 3D Trigonometry Questions (+...   These are the calculators that I recommend: Casio fx-83GTX Scientific Calculator, Black - https://amzn.to/2P2cyGG Casio Fx-991ex Scientific Calculator Fx 991 Ex - New + 552 Function - Classwiz - https://amzn.to/2sw2Moz 🔹 Watch the video 🔹 Make notes 🔹 Practice the questions 🔹 Mark your work 🔹 Review what you have learnt on the exam questions Please like ✅ please comment ✅ please subscribe ✅ Enjoy the video! Follow me here: Instagram: https://instagram.com/gcse_maths_tuto... Twitter:   / gcsemathstutor   Music: Over N Over Musician: Not The King.👑