26 Trigonometry Quizzes Online, Trivia, Questions & Answers - ProProfs Sample Question Find sin (A). 7/25 24/7 24/25 Secondary 3 Express Trigonometry Quiz Secondary 3 Express Trigonometry Quiz Be ready for a difficult "secondary 3 express trigonometry quiz." Trigonometry is one of the most useful and one of the toughest sections of Mathematics. The quiz gives you an opportunity to test your skills, as well,...