A $180^\circ$ rotation around the origin in the counter-clockwise direction is applied to $-6 - 3i.$  What is the resulting complex number?
Question:
A $180^\circ$ rotation around the origin in the counter-clockwise direction is applied to $-6 - 3i.$  What is the resulting complex number?
Answer:
Let's think step by step.

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6 + 3i
A $180^\circ$ rotation around the origin in the counter-clockwise direction is applied to $-6 - 3i.$  What is the resulting complex number?
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