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Um Curso de Calculo - Vol

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x = A 1 e it + B 1 te it + C 1 e –it + D 1 te –it ,

ou seja,

x = A 1 e it + C 1 e –it + t(B 1 e it + D 1 e –it ).

Logo,

x = A cos t + B sen t + t(C cos t + D sen t)

Exercícios 11.3

1. Determine a solução geral

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