use initial conditions u (0, t) = 0 and u (T, t) = 0 u (0, t) = (c1 + c2) (c4 + c3t) = 0 » (c1 + c2) (c4 + c3t) = 0 %3D u (T, t) = (c1 + cze) (c4 + c3t) = 0 > (ci + cze-*) (c4 + c3t) = 0 this condition is only possible if c1 = c2 = C3 = c4 = 0
use initial conditions u (0, t) = 0 and u (T, t) = 0 u (0, t) = (c1 + c2) (c4 + c3t) = 0 » (c1 + c2) (c4 + c3t) = 0 %3D u (T, t) = (c1 + cze) (c4 + c3t) = 0 > (ci + cze-*) (c4 + c3t) = 0 this condition is only possible if c1 = c2 = C3 = c4 = 0
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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I'm having trouble understanding why these two conditions imply that c1=c2=c3=c4=0. Wouldn't both equations still hold if c3=c4=0 only? Or just c1 and c2? Why do all four of them have to be 0?
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