Points A, B, C have coordinates (1, 2, 1), (1, 1, 3) and (2, 2, 2)
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Points A, B, C have coordinates (1, 2, 1), (–1, 1, 3) and (–2, –2, –2) respectively. Calculate the vector product AB(vector) × AC(vector), the angle BAC and a unit vector perpendicular to the plane containing A, B and c. Hence obtain
(a) The equation of the plane ABC;
(b) The equation of a second plane, parallel to ABC, and containing the point D(1, 1, 1);
(c) The shortest distance between the point D and the plane containing A, B and C.
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a b c AB 2 1 2 and AC 343 so j k AB X AC 2 ...View the full answer
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