1)   EMTask_Trigonometry 2.0
168767 solved trigonometric problems from basic to advanced, with test authoring options. Enables creation of math tests, homeworks, quizzes and exams of varied complexity in a minute. Generates 20 variant tests around a constructed example.

 2)   EMTask Trigonometry Equations 2.0
48632 solved trigonometric equations from basic to advanced, with test authoring options. Enables creation of math tests, homeworks, quizzes and exams of varied complexity in a minute. Generates 20 variant tests around a constructed example.