Question: How to check the general solution of equation ?

 I try to solve the general solutions of  sin(x^2)=1/2. And then I would  like to check the solution,but failed. How to do?

about(_Z1);  #Originally _Z1, renamed _Z1~: is assumed to be: integer
about(_B1);  #Originally _B1, renamed _B1~: is assumed to be: OrProp(0,1)

it sholud be 1/2. Thanks!

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