Surds and trigonometry

In this lesson, we will explore the concept of rationality and irrationality in numbers, and learn how to classify rational and irrational numbers.

In this lesson, we will learn what a surd is and we will explore how to accurately estimate the value of a surd.

In this lesson, we will recap how to use Pythagorean theorem to find the length of missing sides in triangles leaving the answers is surd form.

In this lesson, we will look at basic surd rules in particular multiplication and division.

In this lesson, we will learn about the the ratio of side lengths in right angle triangles.

In this lesson, we will look at the special cases of 30 and 60 degrees right angled-triangles.

In this lesson, we will develop an understanding of trigonometric ratios focusing on sine.

In this lesson, we will explore trigonometric ratios focusing on sine and cosine.

In this lesson, we will learn how to find missing sides and angles in triangles using sine and cosine for 30 and 60 degrees.

In this lesson, we will learn how to find missing sides using sine and cosine for any angle in a triangle.

In this lesson, we will use inverse sine and cosine to find missing angles in triangles.

In this lesson, we will look at the graphs made by the sine and cosine functions and compare them to highlight similarities and differences.