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Mathematics
Mathematics
Problem
The tangent to the curve
x
y
=
25
xy = 25
x
y
=
25
at a point
P
(
x
1
,
y
1
)
P(x_{1}, y_{1})
P
(
x
1
,
y
1
)
in the first quadrant has an
x
x
x
-intercept of
20
20
20
. Find the
y
y
y
-coordinate of the point of contact
P
P
P
.
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