SOLUTION: let A-2i+j-3k and B-i+2j-3k then find 2A-B

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Question 379537: let A-2i+j-3k and B-i+2j-3k then find 2A-B
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
A=(2,1,-3)
B=(1,2,-3)
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2A=(4,2,-6)
B=(1,2,-3)
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2A-B=(4-1,2-2,-6-%28-3%29)
2A-B=(3,0,-6%2B3%29)
2A-B=(3,0,-3%29)
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2A-B=3i-3k