Final answer:
In human anatomy, there is no consistent direction for L5 lateral flexion; it can bend either right or left depending on the movement.
Step-by-step explanation:
The question seems to be asking about the direction of lateral flexion, which refers to the bending of the neck or body toward the right or left side. However, it seems to be mixed with an unrelated equation involving trigonometry which looks like it is referring to the fifth lumbar vertebra (L5), potentially from a physics or mathematics problem that deals with position components in a vector format. To clarify, in the context of biology and human anatomy, lateral flexion occurs in the cervical and lumbar regions, where L5 (the fifth lumbar vertebra) can side bend either to the right or to the left depending on the movement and muscles involved, without a specific, consistent direction.