а. 2 ихх — иху — 4uy a2 u az u b. əx² azu ди +4 +34 + u = 0 дхду a?u = 2", k < 0 ax ду ди C. k ax? ду

Algebra: Structure And Method, Book 1
(REV)00th Edition
ISBN:9780395977224
Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Publisher:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Chapter2: Working With Real Numbers
Section2.3: Rules For Addition
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ANSWER LETTER B ASAP. CLASSIFY THE PDE

а. 2 ихх — иху — 4uy
a2 u
az u
b.
əx²
azu
ди
+4
+34 + u = 0
дхду
a?u
= 2", k < 0
ax
ду
ди
C. k
ax?
ду
Transcribed Image Text:а. 2 ихх — иху — 4uy a2 u az u b. əx² azu ди +4 +34 + u = 0 дхду a?u = 2", k < 0 ax ду ди C. k ax? ду
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