hi can you help me answer this?

Section B Answer the following three questions. Each question carries 10 marks. 1. Show the function o is a solution of the given Partial Differential Equation: b(x, t) = A exp 2t 2t at azz +p. 2. A function F(x) satisfies the second order Ordinary Differential Equation d' F dar2 + QF =0, (2) where Q is a constant coefficient, with boundary conditions F(x) = 0 at x = 0 and x = L. Prove that the function F(x) is zero everywhere if Q = 0 or Q