Convert the point $\left( 6 \sqrt{3}, \frac{5 \pi}{3}, -2 \right)$ in cylindrical coordinates to rectangular coordinates.
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
Convert the point $\left( 6 \sqrt{3}, \frac{5 \pi}{3}, -2 \right)$ in cylindrical coordinates to rectangular coordinates.
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
(3 \sqrt{3}, -9, -2)
Convert the point $\left( 6 \sqrt{3}, \frac{5 \pi}{3}, -2 \right)$ in cylindrical coordinates to rectangular coordinates.
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