1. The amplitude of the graph of the equation, y = 3 sin(x/4) is?
2. The period of the curve, y = 2 sin(4x) is?
3. What is the degree measure of the angle 7π/6 radians?
4. The trigonometric expression, sin80° cos50° - cos80° sin50° is also equal to which of the following?
5. In the fourth quadrant, which among the following trigonometric functions is positive?