Final answer:
The student seems to be asking about specific values of a wave function at different points. The question pertains to Quantum Mechanics in Physics and needs more information to provide an exact solution.
Step-by-step explanation:
The student seems to be asking about the values of a wave function y(k) for certain values of k, which could correspond to spatial positions or states in a quantum mechanical context. Since the question mentions Y(z) and is related to wave functions and electron behavior, it implies concepts of Quantum Mechanics within the subject of Physics typically covered at the College level.
The student might be mixing terminologies and concepts, but assuming they are looking for the values of y(k) at discrete points, the clear definition of Y(z) is required to provide an exact answer. However, the question as stated does not provide enough information to determine these values.
A sensible step in approaching this problem would include extracting coefficients such as angular frequency, wave number, and amplitude from the wave equation, or using other provided information to formulate a solution.