PERMUTATIONS & COMBINATIONS no calculator (IGCSE/GCE O Level ADD MATHS) 0606

In this video tutorial, we delve into the fascinating world of permutations and combinations, providing you with the essential tools to conquer these topics without relying on a calculator, perfect for acing paper 1 exams. You'll learn the fundamental concept of factorials, unlocking the ability to solve factorial questions with ease. By the end of this tutorial, you'll gain the confidence to tackle permutation and combination problems efficiently, equipping you with the skills necessary to excel in your exams. Say goodbye to calculator dependency and hello to mastery in counting techniques! 00:00 - Introduction 00:24 - Explaining the Formula for nCr 00:41 - Understanding the Concept of Factorial (n!) 01:44 - Example 1: Applying Factorials and nCr 03:10 - Example 2: Further Application of nCr 04:33 - Example 3: Word Problem Solving with nCr 06:40 - Explaining the Formula for nPr 07:16 - Example 1: Solving Problems Using nPr 08:05 - Example 2: Another Illustration of nPr in Action