This circle has the centre at the origin and a radius of 1 unit. The point P can move around the circumference of the circle. At point P the \(x\)-coordinate is \(\cos{\theta}\) and the \(y ...

Each trigonometric function also has an inverse that can be used to find an angle from a ratio of sides. The inverses of sin(x), cos(x), and tan(x), are arcsin(x), arccos(x) and arctan(x ...

This is the trig. That curve above is a special function. It's called the tangent function. If you put an angle into this function, it gives you the ratio of y to x. You could write this tangent ...

Trigonometry is the branch of math that studies triangles, with a particular focus on the relationships between angles and the lengths of corresponding sides. Interestingly enough, the ...

This circle has the centre at the origin and a radius of 1 unit. The point P can move around the circumference of the circle. At point P the \(x\)-coordinate is \(\cos{\theta}\) and the \(y ...