Select all the correct answers. Which statements are true about the functions y = sin(x), y =
Cos(t), and y = tan(s)?

1. The domains et y = sin(t)-y = cos(I) and y = tan(t)-are-al real numbers:
2. Both y = sin(x) and y = tan(s) are increasing on the interval (0, 3), and y = cos(a) is
decreasing on that interval.
3. The amplitudes of y = sin(s), y = cos(x), and y = tan(s) are 1.
4. The graphs of y = sin(x) and y cos(1) do not have midlines.
5. The periods of y = sin(x) and y = cos(s) are 277, and the period of y = tan(t) is .