(main)[7]
Find the equation of the normal to the curve at the point for which $t = \frac{1}{6}\pi$. Give your answer in the form $ax + by + c = 0$ where $a$, $b$ and $c$ are integers.
Mathematics 9709 · AS & A Level · Differentiation
Find the equation of the normal to the curve at the point for which $t = \frac{1}{6}\pi$. Give your answer in the form $ax + by + c = 0$ where $a$, $b$ and $c$ are integers.
This 7-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Obtain $\frac{dx}{dt}=k_1\cos t\sin t$ or alternatively $\frac{dy}{dt}=k_2\cos 2t$” …