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 ...
👉 Learn the basics of graphing a tangent and a cotangent function. To plot the tangent and the cotangent graph, we choose a set of points and form a table of values with which we plot the points on ...
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 ...