Final answer:
The value of sin(ax) is sin(ax).
Step-by-step explanation:
The function sin(ax) represents the sine of the angle (ax). Since sine is a trigonometric function that relates the ratio of the length of the side opposite the angle to the length of the hypotenuse in a right triangle, it is not directly related to the angle itself. Therefore, the function sin(ax) does not simplify further and the answer to the question is option 1) sin(ax).