In this lesson we learn how to do scalar multiplication (multiply a matrix by a scalar quantity), and how to solve a simple matrix equation involving scalar multiplication and addition/subtraction.
Today we show you how to add and subtract matrices. Note: You can only add/subtract matrices if they have the same number of rows and columns.
In this lesson we introduce you to the idea of matrices (an object containing an array of numbers). We also talk about some properties / features of matrices.
Magic Monk’s Real Life Maths lessons focus on using real life situations to teach maths, so it will help you understand the abstract mathematical concepts as well as be able to apply it to other real life contexts. In this lesson you will learn about matrix addition and subtraction, using a real life problem.
In this tutorial we use complex numbers to factorise a cubic polynomial. h
In this tutorial we go through how to use the factor theorem to factorise a polynomial of degree 3.
In this tutorial I show you how to use complex numbers to factorise a polynomial that you normally can’t factorise.
In this video we show you the proof of how when two complex numbers multiply each other, the resulting magnitude equals the the product of the two original magnitudes and the argument equals the sum of the two original arguments.
So you are okay with squaring complex numbers. Can you square root one? Magic Monk shows you how.
In this tutorial we learn how to raise complex numbers to the nth power using pascal’s triangle.