A try is not required to score points.
A legally tapped jump ball is a live ball. If it passes through the basket from above, it is scored regardless of whether it was by a tap or try for goal. If it is tapped by the player of the team who scored the points, it should be scored 3 points. If tapped by the opposing player, it would be 2 points.
That's how I read it, anyway.
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