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Mathematics
Mathematics
Problem
If
y
=
a
cos
t
y = a \cos t
y
=
a
cos
t
and
x
=
a
(
t
−
sin
t
)
x = a(t - \sin t)
x
=
a
(
t
−
sin
t
)
find the value of
d
y
d
x
\frac{dy}{dx}
d
x
d
y
at
t
=
π
2
t = \frac{\pi}{2}
t
=
2
π
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