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Question: How do I find all solutions?

Question:How do I find all solutions?

Thomas Dean 327 Maple 2020
solve fsolve
July 04 2021
1

restart;
line := x/100 - 1/2;
wave := cos(x / 5) * sin(x / 2); ## -1 <= wave <= 1
eq:= line - wave;
r1 := solve(line < -1); ## RealRange(-infinity,Open(-50))
r2 := solve(line > 1);  ## RealRange(Open(150),infinity)
## There are 27 solutions in RealRange(-50,150)

I searched Questions.  Found many solutions.  The only one that seems to work is Student[Calculus1]:-Roots()

Is there another way to do this?
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