SOLUTION: a that have an arrow on it = (2 -3 5) , b also with an arrow = (1 2 -1)

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Question 1055936: a that have an arrow on it = (2 -3 5) , b also with an arrow = (1 2 -1)


What is 3.a- 4.b= ( ) -( )=( ).
What is a.b=
Answer by Alan3354(69443) About Me  (Show Source):
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a that have an arrow on it = (2 -3 5) , b also with an arrow = (1 2 -1)
a & b are vectors.
Use a = 2i - 3j + 5k
and b = i + 2j - k
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What is 3.a- 4.b= ( ) -( )=( ).
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What does the . mean?
Use * (Shift 8) for multiply.
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What is a.b=
Do you mean the dot product? or the cross product?