Hi everyone, could you help me to find the statement to specify the independent variable when I solve a differential equation (step-by-step solution)? So far I tried the following statements to specify "t" as independent variable:

WolframAlpha["x'(t)+x(t)=Sqrt[(sin(w*t))^2] and x(0)=0", 
 PodStates -> {"Step-by-step solution"}]

WolframAlpha["x'+x=Sqrt[(sin(w*t))^2] over t and x(0)=0", 
 PodStates -> {"Step-by-step solution"}]

WolframAlpha["x'(t)+x(t)=Sqrt[(sin(w*t))^2] over t and x(0)=0", 
 PodStates -> {"Step-by-step solution"}]

also with square brackets, but it doen not work (the software considers "w" as independent variable).

Thank you a lot.