The maximum value of the image of the function y = asin (Wx + φ) is 3, and the axis of symmetry x = π / 6, In order to make the analytic expression y = 3sin (2x + π / 6), we should also give a condition that is?

The maximum value of the image of the function y = asin (Wx + φ) is 3, and the axis of symmetry x = π / 6, In order to make the analytic expression y = 3sin (2x + π / 6), we should also give a condition that is?

Period T = 2 π / 2 = π