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Mathematics
Problem
Given
sec
2
y
+
x
y
=
1
\sec^{2}y+xy=1
sec
2
y
+
x
y
=
1
, find
d
y
d
x
\dfrac{dy}{dx}
d
x
d
y
in terms of
x
x
x
and
y
y
y
.
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