Question

Laplace transform of cost is​

Answer 1

Answer:

By definition of the Laplace Transform: L{cosat}=∫→+∞0e−stcosatdt. From Integration by Parts: ∫fg′dt=fg−∫f′gdt.

Answer 2

Answer:

By definition of the Laplace Transform:  L{cosat}=∫→+∞0e−stcosatdt.

From Integration by Parts: ∫fg′dt=fg−∫f′gdt.