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Mathematics
Mathematics
Problem
Find
d
y
d
x
\frac{dy}{dx}
d
x
d
y
, if
x
=
a
(
cos
t
+
log
tan
t
2
)
x = a(\cos t + \log \tan \frac{t}{2})
x
=
a
(
cos
t
+
lo
g
tan
2
t
)
,
y
=
a
sin
t
y = a \sin t
y
=
a
sin
t
. (2015J, 2017J)
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