How can we prove it? a²u (p. Ax) T-sin((x+Ax, t))-T- sin(0(x, t))

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How can we prove it?
a²u
(p. Ax) T-sin((x + Ax, t)) - T-sin(0(x, t))
at²
Transcribed Image Text:How can we prove it? a²u (p. Ax) T-sin((x + Ax, t)) - T-sin(0(x, t)) at²
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