Prove that f f ‘(n • r - ct)dt = - f (n • r - ct)/c

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A crucial step in showing that the waves in a fluid are necessarily longitudinal was the integral in (16.142). For an arbitrary function f (ξ), with derivative f'(ξ), prove that f f ‘(n • r - ct)dt = - f (n • r - ct)/c.

Reference no: EM131049821

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