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? ? ? ? 1. z =x²-2y² 2. z = x² + 3y² 3. z = y - 4x² 4. z = -5x²

? ? ? ? 1. z =x²-2y² 2. z = x² + 3y² 3. z = y - 4x² 4. z = -5x²

Advanced Engineering Mathematics
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Sketch a contour diagram of each function. Then, decide whether its contours are predominantly lines, parabolas, ellipses, or hyperbolas. 1. z = x²-2y² 2. z = x² + 3y² 3. z = y - 4x² ? ? ? ? 4. z = -5x²
Transcribed Image Text:Sketch a contour diagram of each function. Then, decide whether its contours are predominantly lines, parabolas, ellipses, or hyperbolas. 1. z = x²-2y² 2. z = x² + 3y² 3. z = y - 4x² ? ? ? ? 4. z = -5x²
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