Advanced Engineering Mathematics
Advanced Engineering Mathematics
10th Edition
ISBN: 9780470458365
Author: Erwin Kreyszig
Publisher: Wiley, John & Sons, Incorporated
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4 If a = 5i + 4j + 2k, b = 4i – 5j + 3k and c 2i -j- 2k, where i, j, k are
the unit vectors, determine:
(a) the value of a.b and the angle between the vectors a and b
(b) the magnitude and the direction cosines of the product vector (a x b)
and also the angle which this product vector makes with the vector c.
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Transcribed Image Text:4 If a = 5i + 4j + 2k, b = 4i – 5j + 3k and c 2i -j- 2k, where i, j, k are the unit vectors, determine: (a) the value of a.b and the angle between the vectors a and b (b) the magnitude and the direction cosines of the product vector (a x b) and also the angle which this product vector makes with the vector c.
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