Consider the points A, B, C, D where coordinates are respectively (1, 1, 0), (-1, 1, 0), (1, – 1, 0), (0, – 1, 1). Find the direction cosines of AC and BD and calculate the angle between them.

Elementary Geometry for College Students
6th Edition
ISBN:9781285195698
Author:Daniel C. Alexander, Geralyn M. Koeberlein
Publisher:Daniel C. Alexander, Geralyn M. Koeberlein
Chapter7: Locus And Concurrence
Section7.CT: Test
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Consider the points A, B, C, D where coordinates are respectively
(1, 1, 0), (-1, 1, 0), (1, -1, 0), (0, – 1, 1). Find the direction
cosines of AC and BD and calculate the angle between them.
Transcribed Image Text:Consider the points A, B, C, D where coordinates are respectively (1, 1, 0), (-1, 1, 0), (1, -1, 0), (0, – 1, 1). Find the direction cosines of AC and BD and calculate the angle between them.
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