1. The problem statement, all variables and given/known data [(w^2).b - Tk^2]/Qw = tan(kx - wt + P) This cant be solved for all (x,t) with constant values of w and k Can you explain why this is so please? ive used b to represent the mass per unit length, and T is the tension 2. Relevant equations This is the answer to a question that asked if why a particular value of y doesnt satisfy the general wave equation. I just dont understand why the statement is true. 3. The attempt at a solution i think this may just be a mathematical explanation due to the nature of the tan function, but im unsure.