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Mathematics
Problem
Use implicit differentiation to find the following derivatives. The answers are in Chapter 23, starting on page 475. 3. Find
d
y
d
x
\frac{d y}{d x}
d
x
d
y
at
(
2
,
1
)
(2,1)
(
2
,
1
)
if
x
+
y
x
−
y
=
3
\frac{x+y}{x-y}=3
x
−
y
x
+
y
=
3
.
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