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Mathematics
Mathematics
Problem
If
x
=
cos
t
x = \cos t
x
=
cos
t
and
y
=
sin
t
y = \sin t
y
=
sin
t
, then prove that
d
y
d
x
=
1
3
\frac{dy}{dx} = \frac{1}{\sqrt{3}}
d
x
d
y
=
3
1
, at
t
=
π
3
t = \frac{\pi}{3}
t
=
3
π
.
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