29.9) Compute the Fourier transform of the periodic function f(t) to prove the equation shown below:
29.9) Compute the Fourier transform of the periodic function f(t) to prove the equation shown below:...
Using Fourier transform, prove that a solution of the Laplace equation in the half plane: Urn+ Uyy=0,- << ,y>0, with the boundary conditions u(1,0) = f(t), - <I< u(x,y) +0,31 +0,+0, is given by r(2, y) == Love you > 0. Hint: 1. Take Fourier transform on the variable r, 2. Observe U(k, y) +0 as y → 00, 3. Use pt {e-Mliv = Vice in
only number 8 Figure 3.2 Figure 3.1 Find the Fourier transform of the following signals a. x(t) - e-at cos(wt) u(t) ,a>0 8. 1+j2)t 9. Compute the discrete Fourier transform of the following signals.
Use tables of Fourier transform pairs and properties to find the Fourier transform of each of the signals a) f(t)=(1-eb )u(t) b) f(t)= Acos(@t+) c) f(t)=e"u(-t), a>0 d) f(t)=C/(t+t)
IF Let x(t) Show that e 20" σ>0, and let (o) be the Fourier transform of x(t) .
Integral Transform Find the Laplace transform for the periodic function f(t) = f(t+2) and f(t) = t for 0 <t< 2.
(c). Determine the Fourier transform of s(t)={! -1<i<1 14 > 1
Find the inverse Laplace transform, f(t) of the function F(s)+ f(t) Points possible: 1 S > 3 Preview t>0 Enter an algebraic expression [more..]
Let U be an open subset of R". Let f: UCR" ->Rm. (a) Prove that f is continuously differentiable if and only if for each a e U, for eache > 0, there exists o > 0 such that for each xe U, if ||x - a| << ô, then |Df (x) Df(a)| < e.
3. If signal 13(t) has Fourier transform J 1-2W, -0.5 <w< 0.5 otherwise 0 find 13t).
Find the Laplace transform of the function f(t). f(t) = sint if o St<$21; f(t) = 0 if t> 21 Click the icon to view a short table of Laplace transforms. F(S) =