Find the slope of the tangent line to the polar curve \ (r=2\) at the points where it intersects the polar curve \ (r=4\cos \theta\text {.}\) (Hint: After you find the intersection points, convert one ...

We can calculate the gradient of a tangent to a curve by differentiating. In order to find the equation of a tangent, we: Differentiate the equation of the curve Substitute the \(x\) value into ...

Learn and revise how to plot coordinates and create straight line graphs to show the relationship between two variables with GCSE Bitesize Edexcel Maths.