This application creates trillions of unique "prove that: " questions in milliseconds. It does not have any ads and has all sections unlocked for user.
To use the application, first of all tap on generate button. This will take you on difficulty selection page. From here, you can select difficulty from Easy, Medium, Hard and Tricky. After tapping on the difficulty, it will show you question. You can also share question to anyone by tapping on share button. This application can help teachers as well as students from the beginning of trigonometry to its PhD. And the best part is that it is one time purchase!!!
And also there are hints for the person who is solving the question and also it remains hidden until user taps on Hint button on the same page on which the question is presented. This application can help you to not consider trigonometry prove that as your weak point but as your power point in your exams.