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Mathematics
Mathematics
Problem
For the rectangular hyperbola
x
y
=
k
xy=k
x
y
=
k
, determine
k
k
k
so that the tangent at the point
(
k
,
1
)
(k,1)
(
k
,
1
)
is perpendicular to the line
3
x
+
2
y
=
7
3x+2y=7
3
x
+
2
y
=
7
.
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