8. Plot the sine curve y = 2 sin( [2x + 3]). Write down the five main points used for graphing. (3 marks) 9. Find two values of x less than 360 such that sin(2x) = 13. ( 3 marks ) - 2 10. Find two values of x less than 360 such that sin(2x 1) = . ( 3 marks ) 11. Find two values of x less than 360 such that cos(2x 20) = 1. ( 3 marks) - 12. Find two values of x less than 360 such that 2 cos(10x - 10) = 1. ( 3 marks ) 13. Find two values of x less than 360 such that 2 sin(x) = cos(x) = cos(x). ( 3 marks ) 14. Find two values of x less than 360 such that 2 sin(8x - 40) = 3. ( 3 marks )