A curve has the equation 3cosy−3sinx=−4.53 \cos y - 3 \sin x = -4.53cosy−3sinx=−4.5 where 0≤x≤π 0 \leq x \leq \pi\,0≤x≤π and 0≤y≤π0 \leq y \leq \pi0≤y≤π.
Find an expression for dydx\displaystyle \frac{dy}{dx}dxdy
Find the coordinates of the point where dydx=0\displaystyle \frac{dy}{dx} = 0dxdy=0
