Question: Solving system of equations including trigonometric functions

I stumpled upon an exercise involving calculating double points for the spacecurve for a vector function defined in the plane. It reduces to solving two equations with two variables. The command solve is usually the way to find solutions, but since the equation contain a trigonometric function, Maple gives the solutions parametrized by aritrary constants _Z and _B. It is however cumbersome to 'decipher' the possible solutions as I do in the attached Maple file.  

I wonder if Maple have a way to deliver the solutions numerically in the interval from -4 to 4? If it had been a single equation this would have been possible, I know. 

NB! I know I can use the symmetri in the current example, but I am interested in a general technique to solve these kind of equations. 

Download Solving_system_of_equations_including_trigonometric_functions.mw

Regards,

Erik