Given the points A( – 5, 6, – 4), B( – 2, 10, 6), and C(4, 0, 5), find (a) the angle between AB → and AC, (b) the angle between BA and BC, and (c) the angle between CA and CB. (a) ZBAC = 29.9 (b) ZABC = 42 (c) ZACB = 95.225 X X

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