Question: Given points A(2; 2; -1), B(3; -1;1), C(4;1;2), D(1; -1; 1). Find...1. Scalar product of vectors AB and AC2. Angle between the vectors AB and

Given points A(2; 2; -1), B(3; -1;1), C(4;1;2), D(1; -1; 1). Find...1. Scalar product of vectors AB and AC2. Angle between the vectors AB and AC3. Vector product of the vectors AB and AC4. Area of the triangle ABC

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