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July 13, 2014

Homework Help: Trigonometry

Posted by Anonymous on Wednesday, August 1, 2012 at 4:32pm.

Which of the following pairs of vectors are orthogonal?
(i) v = 18i − 3j and w = −i − 6j
(ii) v = 15i − 2j and w = −4i + 30j
(iii) v = 3i − j and w = i + 3j
A. (i) and (ii)
B. (i) and (iii)
C. (ii) only
D. (i) only
17.

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