題目 10. Polar coordinate x=rcosθ, y=rsinθx=r\cos\theta,\ y=r\sin\thetax=rcosθ, y=rsinθ. Cardioid r=1−sinθr=1-\sin\thetar=1−sinθ. At the point (x,y)=(1,0)(x,y)=(1,0)(x,y)=(1,0) d2ydx2=?\dfrac{d^2y}{dx^2}=?dx2d2y=? 解答
