Find the inverse Laplace transform ƒ(t) = L−¹ {F(s)} of the function F(s) You may use h(t) for the Heaviside step function. es(9s + 1) f(t) = L−1 {- } =h(t-1)(9cos(6(t-1))+1/6sin(6(t-1))) s² + 36 (9s + 1) s²+36 help (formulas)