Hello again! I was hoping someone can help me with dervatives of mod functions, thanks!

Considering suitable domains find the rule for the derivative function:

y = mod(sinx), y = mod(sin2x), y = mod((e^(-0.1x))sinx) and y = mod((e^(-0.2x)sin(3x)).

Consider y = 5(mod(e^(-ax)sin(bx)). What is the effect of changing the value of a and b?