e)z = √√9-x² - y² 1 f)f(x,y) = √₁-x²-y²² onde x² + y² ≤1

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
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Find the countor lines and sketch the graphs
e)z = √√√√9x² - y²
1
f)f(x,y) = √₁-x²-y²²
onde x² + y² ≤1
Transcribed Image Text:e)z = √√√√9x² - y² 1 f)f(x,y) = √₁-x²-y²² onde x² + y² ≤1
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