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Transcribed Image Text:Show explicitly that the wave function,
y (x, t)
A cos(kx - wt),
=
satisfies the wave equation,
8²
dx 2 y (x, t)
=
1 8²
v² Ət2 y(x, t).
Write the explicit value of v as a function of
the parameters of the wave function, w, k
and A.
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