Let f(x.y) be a differentiable function satisfying the equation af dx = xy. af ds af and at After the change of variable x=s+t and y= s-t what equation will satisfy? af əs af + = s² - t2 at Oa. s2 - t? b. df as of at + = 2s + 2t af af - t at ds = st d.

College Algebra (MindTap Course List)
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Author:R. David Gustafson, Jeff Hughes
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Chapter2: Functions And Graphs
Section2.6: Proportion And Variation
Problem 22E: Find the constant of proportionality. z is directly proportional to the sum of x and y. If x=2 and...
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Let f(x.y) be a differentiable function satisfying the equation
af
dx
= xy.
af
ds
af
and
at
After the change of variable x=s+t and y= s-t what equation
will satisfy?
af
əs
af
+
= s² - t2
at
Oa.
s2 - t?
b.
df
as
of
at
+
= 2s + 2t
af
ds
af
- t
at
= st
Od.
Transcribed Image Text:Let f(x.y) be a differentiable function satisfying the equation af dx = xy. af ds af and at After the change of variable x=s+t and y= s-t what equation will satisfy? af əs af + = s² - t2 at Oa. s2 - t? b. df as of at + = 2s + 2t af ds af - t at = st Od.
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