Question: Part C: Thinking [10 marks] Please show full solutions for full marks. 21. Points: A(-4, 3, 2), B(-8, 5, 3), and C(4, -2, -2) form
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Part C: Thinking [10 marks] Please show full solutions for full marks. 21. Points: A(-4, 3, 2), B(-8, 5, 3), and C(4, -2, -2) form a triangle. Find a vector that has a magnitude of one and is perpendicular to the triangle. [3 marks]
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