In this video we introduce you to Venn Diagrams, an important concept in set theory. We also talk about how to put some real life information into a venn diagram. We will talk more about how the venn diagram relates to set theory in the next lesson.
In this lesson we do a quiz testing the knowledge you have learned from the last two lessons – is an element of, is a subset of, finite, infinite, cardinality etc.
In this lesson we learn about what a set is, and the symbol for “is an element of” and how to use that symbol.
You have two sets which contain the same elements but their order is different. Are they the same set?
In this tutorial we talk about what cardinality of a set means, then we go through how to find the number of elements in the union of two sets, by using the formula |A|+|B|-|A and B|=|A or B|.
Another challenging surds problem. Full explanation provided. Do you have a better way to solve it? Let me know.
A problem involving subtracting surds to infinity.. guaranteed to hurt your brain! good luck. full solutions provided.
Hi all, an interesting surds question I came across recently, have fun doing it! Full working out solution provided in the end.
In this final lesson of surds, we talk about how to rationalise demoniators when they are the sum of 2 surds, by using their conjugates.
In this lesson we talk about how to rationalise the denominator (turn the denominator of a fraction from a surd into a rational number).