Find the length and direction of utimes v and vtimes u u = 2i - 2j + 4k, v = -i + j - 2k

przesypkai4 2022-07-30 Answered
Find the length and direction of u × v and v × u
u = 2i - 2j + 4k, v = -i + j - 2k
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Answers (1)

kuglatid4
Answered 2022-07-31 Author has 12 answers
First we find u × v = | i j k 2 2 4 1 1 2 |
=i(4-4)-j(-4+4)+k(2-2)
=0
and v × u = | i j k 1 1 2 2 2 4 |
=i(4-4)-j(-4+4)+k(2-2)
=0
The length of the u × v and v × u is'zero', and both are have the same direction.
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