Problem on the solution of Trigonometric Equations

Question:Problem on the solution of Trigonometric Equations

Posted: Glowing 95 Product: Maple 18

June 25 2014

How can I know the solution is correct??

Here is the code:

s := solve(sin(x^2) = 1/2);
test := subs(x = s[1], sin(x^2) = 1/2);

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