Solve x = 5 + t , y = 3 t

求值

{x = 5 + t y = 3 t

求导数 \frac{d y}{d x} ，先求 \frac{d x}{d t} 和 \frac{d y}{d t}

\frac{d}{d t} (x) = \frac{d}{d t} (5 + t) \frac{d}{d t} (y) = \frac{d}{d t} (3 t)

求导数

更多步骤

\frac{d x}{d t} = 1 \frac{d}{d t} (y) = \frac{d}{d t} (3 t)

求导数

更多步骤

\frac{d x}{d t} = 1 \frac{d y}{d t} = 3

解题方案

\frac{d y}{d x} = 3

x = 5 + t , y = 3 t