Dif(a1, a2): = d dt etaz a₂ +t) (etc t=a1 f(x, y) = ey+x, = (etª²a² + 1)|t=a₁ = eª¹ª²a² + 1.

College Algebra (MindTap Course List)
12th Edition
ISBN:9781305652231
Author:R. David Gustafson, Jeff Hughes
Publisher:R. David Gustafson, Jeff Hughes
Chapter2: Functions And Graphs
Section2.6: Proportion And Variation
Problem 18E
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I have the following example of partial derivative, I don't get whats going on, where does a22 come from?  if able please elaborate the steps more, thank you in advance

Dif(a₁, a₂) =
d
(et
etaz a₂ +t)
dt
f(x, y) = e¹y+x.
t=a1
= (etª²a² + 1)|t=a₁ = eª¹ª²a² +1.
Transcribed Image Text:Dif(a₁, a₂) = d (et etaz a₂ +t) dt f(x, y) = e¹y+x. t=a1 = (etª²a² + 1)|t=a₁ = eª¹ª²a² +1.
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