Learn how to use the double angle identities to solve trigonometric equations. When we have equations with a double angle we ...

👉 Learn how to solve trigonometric equations. There are various methods that can be used to evaluate trigonometric ...

A tangent to a circle at point P is a straight line that touches the circle at P. The tangent is perpendicular to the radius which joins the centre of the circle to the point P. As the tangent is a ...

As the tangent is a straight line, the equation of the tangent will be of the form \(y = mx + c\). We can use perpendicular gradients to find the value of \(m\), then use the coordinates of P to find ...