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22 Oct 2018
Q1.20 Let A represent any nonzero vector. Why is A/A a unit vector, and what is its direction? If @ is the angle that A makes with the +x-axis, explain why (A/A). î is called the direction cosine for that axis.
Q1.20 Let A represent any nonzero vector. Why is A/A a unit vector, and what is its direction? If @ is the angle that A makes with the +x-axis, explain why (A/A). î is called the direction cosine for that axis.
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Deanna HettingerLv2
22 Oct 2018