Determine which of the following expressions are exact differentials: (a) df = (y + z)dx + (z + y)dy + (x + y)dz (b) df = 2xy dx + 2yz² dy – (1 – x² – 2y²z)dz (c) df =z dx + x dy + y dz (d) df = (x' + 3x³y>z)dx + (y+ 2x'yz)dy + (x'y³)dz
Determine which of the following expressions are exact differentials: (a) df = (y + z)dx + (z + y)dy + (x + y)dz (b) df = 2xy dx + 2yz² dy – (1 – x² – 2y²z)dz (c) df =z dx + x dy + y dz (d) df = (x' + 3x³y>z)dx + (y+ 2x'yz)dy + (x'y³)dz
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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