How do I solve the equation:

Question

3 = 2.1 sin[(pi/6)t - 5pi/6] + 3.2

Answer 1

3 = 2.1 sin[(π/6)t - 5π/6] + 3.2
2.1 sin[(π/6)t - 5π/6] = -0.2
sin[(π/6)t - 5π/6] = -0.095238
(π/6)t - 5π/6 = -.0953826
(π/6)t = 2.522611
t = 4.8178

and of course, there is another solution