1. Suggest mathematical functions that represent a sinusoidal wave of amplitude A, frequency v, and wavelength ? .
2. Justify the mathematical form of the linear momentum operator, (-ih)d/dx, by applying in to the simple sinusoidal wave of problem 1.
3. Justify the mathematical form of the energy operator, (ih)d/dx, by applying in to the simple sinusoidal wave of problem 1.