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Find gradient of parametric curve (#410)
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Find gradient of parametric curve (#410)
Use
d
y
d
x
=
d
y
/
d
t
d
x
/
d
t
\frac{dy}{dx} = \frac{dy/dt}{dx/dt}
d
x
d
y
=
d
x
/
d
t
d
y
/
d
t
.