1.If F(s) is the Fourier transform of f(x), then find the Fourier transform of f(ax). 1 , x ≤1 2. Find the Fourier transform of f(x) = 0 , x > 1 -x 3. Find the Fourier cosine transform of e ∞
−λ 4. Solve the integral equation ∫ f ( x ) cos λx dx = e . 0
5. Find the Fourier sine transform of
1 x
6. State the Fourier integral theorem. 7.Prove that F [ eiax f(x)] = F(s+a) where F [f(x)] = F(s). 8.Write down the Fourier cosine transform pair of formulae. 9. State convolution theorem on Fourier transforms. 10.If F [f(x)] = F(s), prove that F [ f(x-a) ] = eisa F(s). 11. Find the Fourier sine transform of e-x 1 s 12.prove that F [f(ax)] = F( ) ,a > 0. a a 13.