The point P P\,P lies on the curve with equation y=cscx−cos2xy = \csc x - \cos 2xy=cscx−cos2x with xxx-coordinate π4\displaystyle \frac{\pi}{4}4π
Find an equation to the tangent to the curve at the point PPP.
47 exam-style questions on Edexcel A Level Maths 9.8 Implicit Differentiation. Each one has a worked solution and a mark scheme showing where the marks go.