Sohca...what? Just an easy way to remember how sine, cosine and tangent work: OK, let's see what this is all about.

This is a powerful Scientific Calculator You can use it like a normal calculator, or you can type formulas like (3+72)2 It has many functions...

Sine, Cosine and Tangent are the main functions used in Trigonometry and are based on a Right-Angled Triangle. Before getting stuck into the...

We can find an unknown angle in a right-angled triangle, as long as we know the lengths of two of its sides. The ladder leans against a wall as shown.

The Unit Circle is a circle with a radius of 1. Being so simple, it is a great way to learn and talk about lengths and angles.

For a right-angled triangle: The sine function sin takes angle and gives the ratio opposite hypotenuse. The inverse sine function sin-1 takes...

We can find an unknown side in a right triangle when we know: one length, and. one angle (apart from the right angle).

Force is push or pull. Forces on an object are usually balanced. When forces are unbalanced the object accelerates:

The three main functions in trigonometry are Sine, Cosine and Tangent. They are easy to calculate: Divide the length of one side of a right...

Trigonometry: from Greek trigonon triangle + metron measure. Want to learn Trigonometry? Here is a quick summary. Follow the links for more, or...