The one dimensional wave equation describes how waves of speed c propogate along a taught string. It is given by the formula 2u(x, t) = c²– da?u(x, t). ςu (r, t). This is a partial differential equation. In MATH2, solve ordinary differential equations. However, using the multivariable chain rule, we’ll show that this problem is indeed tractable we’ve only learned how to a) By introducing variables n = x – ct, a =x + ct, show that the wave equation becomes da = 0 b) Show that u = F(@) + G(ŋ) is a solution for any two functions F and G.

Advanced Engineering Mathematics
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ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
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4. The one dimensional wave equation describes how waves of speed c propogate along a
taught string. It is given by the formula
Ət2u(x, t) = c²-
da2 u(x, t).
This is a partial differential equation. In MATH , we’ve only learned how to
solve ordinary differential equations. However, using the multivariable chain rule,
we’ll show that this problem is indeed tractable
a) By introducing variablesn= x – ct, a = x + ct,
show that the wave equation becomes
da
= 0
n-
b) Show that u =
F(a) + G(n) is a solution for any two functions F and G.
Transcribed Image Text:4. The one dimensional wave equation describes how waves of speed c propogate along a taught string. It is given by the formula Ət2u(x, t) = c²- da2 u(x, t). This is a partial differential equation. In MATH , we’ve only learned how to solve ordinary differential equations. However, using the multivariable chain rule, we’ll show that this problem is indeed tractable a) By introducing variablesn= x – ct, a = x + ct, show that the wave equation becomes da = 0 n- b) Show that u = F(a) + G(n) is a solution for any two functions F and G.
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