In triangle ABC: A (1; 3), B (- 2; 2), C (0; -4). Find the dot product of vectors AB * AC.
| January 6, 2021 | education
To solve this problem, we need to find AB and AC. AB (-2-1; 2-3) and
AC (0-1; -4-3) thus we find AB and AC. Hence AB (-3; -1) and AC (-1; -7). In order to obtain a detailed solution for the scalar product of vectors AB and AC, you need to find the sum of the products of the corresponding coordinates of these vectors.
AB * AC = -3 * (-1) + (-1) * (-7) = 3 + 7 = 10.
Answer: AB * AC = 10
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