a) Use the total differential dz to approximate Az. Use f(2,1) and f(2.12, 1.09) where f(x,y) = x cos y b) Find az/ax and az/ay for x² + 2yz + z² = 1. Use implicit differe tiation.

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Use f(2,1) and f(2.12, 1.09)
a) Use the total differential dz to approximate Az.
where f(x,y) = x cos y
b) Find az/ax and az/ay for x² + 2yz + z² = 1. Use implicit differentiation.
Transcribed Image Text:Use f(2,1) and f(2.12, 1.09) a) Use the total differential dz to approximate Az. where f(x,y) = x cos y b) Find az/ax and az/ay for x² + 2yz + z² = 1. Use implicit differentiation.
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