Solve x=5+t,y=3t - ScanMath

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

More Steps

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

求导数

More Steps

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

Solution

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

X=5+t,y=3t