Learn how to solve problems with tangent line. A tangent line to a circle is a line that touches the circle at exactly one ...

👉 Learn how to find and write the equation of the tangent line of a curve at a given point. The tangent of a curve at a ...

To find the tangent line to a curve at a point P we first pick another point on the curve a little bit away from P. Call this point Q. Do this below by clicking "Another Point". Then connect these two ...

It is important to remember other angles rules, such as angles on a straight line add up to 180°, and to recognise angles in parallel lines. Make sure you are confident in applying Pythagoras’ theorem ...