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CHAP. 21] THE LAPLACE TRANSFORM 215
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21.10. Find the Laplace transform of/(;t) = 3 + 2.x .
Using Property 21.1 with the results of Problems 21.4 and 21.5, or alternatively, entries 1 and 3 (w = 3) of
Appendix A, we have
21.11. Find the Laplace transform off(x) = 5 sin 3x - lie 2x .
Using Property 21.1 with the results of Problems 21.6 (a = -2) and 21.7 (a = 3), or alternatively, entries 7 and
8 of Appendix A, we have
21.12. Find the Laplace transform off(x) = 2 sin x + 3 cos 2x.
Using Property 21.1 with entries 8 (a = 1) and 9 (a = 2) of Appendix A, we have
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21.13. Find the Laplace transform off(x) = 2x - 3x + 4.
Using Property 21.1 repeatedly with entries 1, 2 and 3 (w = 3) of Appendix A, we have
21.14. Find
This problem can be done three ways.