The equality f s ∂ f 0 ∂ v s = f 0 ∂ f 0 ∂ v 0 holds and explain the meaning of ∂ f 0 ∂ v s .

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Chapter 29.3, Problem 46E

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To show: The equality fs∂f0∂vs=f0∂f0∂v0 holds and explain the meaning of ∂f0∂vs.

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