Fix bug 4654

Author: gajennings

OpenProblemLibrary/ASU-topics/setTrigEquations/p8.pg

@@ -28,7 +28,7 @@ install_problem_grader(~~&std_problem_grader);
 TEXT(beginproblem());
 $showPartialCorrectAnswers = 0;
 $pi = 4*atan2(1,1);
-@values =('{\sqrt(3)}','-{\sqrt(3)}','\frac{1}{\sqrt(3)}','-\frac{1}{\sqrt(3)}','1','-1');
+@values =('{\sqrt{3}}','-{\sqrt{3}}','\frac{1}{\sqrt{3}}','-\frac{1}{\sqrt{3}}','1','-1');
 $tag1 = random(0,5,1);
 $tag2 = random(0,5,1);
 while ($tag2 == $tag1) {$tag2 = random(0,5,1);}