Use Theorem 7.4.1. THEOREM 7.4.1 Derivatives of Transforms If F(s) = ℒ{f(t)} and n = 1, 2, 3, . . ., then ℒ{tnf(t)} = (−1)n dn dsn F(s). Evaluate the given Laplace transform. (Write your answer as a function of s.) ℒ{3t2 cos(t)}
Use Theorem 7.4.1. THEOREM 7.4.1 Derivatives of Transforms If F(s) = ℒ{f(t)} and n = 1,...
Use Theorem 7.4.1. THEOREM 7.4.1 Derivatives of Transforms If F(s) = ℒ{f(t)} and n = 1, 2, 3, . . . , thenℒ{tnf(t)} = (−1)n dn dsn F(s). Evaluate the given Laplace transform. (Write your answer as a function of s.) ℒ{t cos(7t)}
L{t"f(t)} = (-114 d Fis). Use Theorem 7.4.1. THEOREM 7.4.1 Derivatives of Transforms If F(s) = L{f(t)} and n = 1, 2, 3, .., then ds" Evaluate the given Laplace transform. (Write your answer as a function of s.) L{t cos(50)}
Use Theorem 7.4.1. THEOREM 7.4.1 Derivatives of Transforms If F(s) = L{f(t)} and n = 1, 2, 3, ..., then L{"f(t)} = (-1)". F(s). Evaluate the given Laplace transform. (Write your answer as a function of s.) L{t cos(7t)} Find the general solution of the given differential equation. +3y= -* YOU) - Give the largest interval over which the general solution is defined. (Think about the implications of any singular points. Enter your answer using interval notation.) Determine whether there...
Use Theorem 7.4.1.THEOREM 7.4 .1 Derivatives of TransformsIf F(s)=L{f(t))} and n=1,2,3, ……, then
Use Definition 7.1.1,DEFINITION 7.1.1 Laplace TransformLet f be a function defined for t ≥ 0. Then the integralℒ{f(t)} = ∞e−stf(t) dt0is said to be the Laplace transform of f, provided that the integral converges.to find ℒ{f(t)}. (Write your answer as a function of s.)f(t) = cos(t),0 ≤ t 0)
Use Theorem 7.1.1 to find ℒ{f(t)}. (Write your answer as a function of s.)f(t) = 10t − 8ℒ{f(t)} =
Use Theorem 7.1.1 to find ℒ{f(t)}. (Write your answer as a function of s.)f(t) = t2 + 4t − 2ℒ{f(t)} =
Use Definition 7.1.1.DEFINITION 7.1.1 Laplace TransformLet f be a function defined for t ≥ 0. Then the integralℒ{f(t)} = ∞e−stf(t) dt0is said to be the Laplace transform of f, provided that the integral converges.Find ℒ{f(t)}. (Write your answer as a function of s.)f(t) = et + 2ℒ{f(t)} = (s > 1)
Use Definition 7.1.1.DEFINITION 7.1.1 Laplace TransformLet f be a function defined for t ≥ 0. Then the integralℒ{f(t)} = ∞e−stf(t) dt0is said to be the Laplace transform of f, provided that the integral converges.Find ℒ{f(t)}. (Write your answer as a function of s.)f(t) = 9, 0 ≤ t
Use appropriate algebra and Theorem 7.2.1 to find the given inverse Laplace transform. (Write your answer as a function of t.) ℒ−1 1/(s^2 + s − 56) Some Inverse Transforms (a) 1 = L-1 (b) " = L-1 1 n = 1, 2, 3, ... (c) eat = L-1 L-1 (d) sin kt = L-1 k 92 + k? (e) cos kt = L- 52 + k ****] ) S (f) sinh kt = ! k 92 – k (g)...