3. Three points A(-1,1,1), B(2,1,-2) and C(2,0,-3) are vertices of a triangle. Explain in words and vector notations how
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3. Three points A(-1,1,1), B(2,1,-2) and C(2,0,-3) are vertices of a triangle. Explain in words and vector notations how
3. Three points A(-1,1,1), B(2,1,-2) and C(2,0,-3) are vertices of a triangle. Explain in words and vector notations how you would use the dot product to determine whether AABC is a right triangle.
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