For our lessons, give us a call at +65 87870198 So what is so scary with Trigonometric Equations? I think it is because in Sec 2 E Math, we have basic trigonometry in a right triangle. That is not that bad to learn in terms of difficulty. Then in Sec 3, the schools will suddenly teach a much harder version of Trigonometry both in E Math and Add Math. It is a sudden ramp up