Prove Lemma 9.14. Let x, v be real and k > 0. A function of the form
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Let x, v be real and k > 0. A function of the form
f(t) = tkeut cos v t or tk eutsin v t (9.17)
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lime f(t) = 0.
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In both cases ft t k e t If 0 then e t ...View the full answer
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