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

Learn how to graph the equation of a circle by completing the square. Completing the square will allow us to transform the ...

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 ...