Could anyone give me the List of équations in trigonometry chapter that needs to je remmembered

Answer 1

Your first source would be your textbook.
Perhaps your teacher gave you a handout of such equations.
You can always google "trig equations" or "trig equations worksheet"

There would be an infinite number of such equations.

Answer 2

Here is just one such worksheet

http://www.bearsdenacademy.e-dunbarton.sch.uk/_includes/attachments/P1283/Unit2_TrigonometricEquations.pdf

That should keep you busy for a while.
Try the questions before looking at the solutions.