In shot put, the shot is put (thrown) from above the athlete's shoulder level. Is the launch angle that produces the greatest range 45°, less than 45°, or greater than 45°?

The launch angle that produces the greatest range is 45°

Explanation:

Range is given by u^2sin (2A) / g

The range is maximum when A is 45°

Rmax = u^2sin90°/g = u^2/g

If A is less than or greater than 45°, the range would be lesser