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Vectors: Operations
(
4
3
–6
)
.
(
1
–4
8
)
 =

tickcross


Worked Solution:

The dot product (the scalar product) of two vectors is a number (a scalar):
Multiply the i components and add it to the product of the j and k components to get the scalar product:
(
4
3
–6
)
 .
(
1
–4
8
)
 = 4×1 + 3×(–4) + (–6)×8 = –56

© MEI Produced by Dr Ron Knott, revised 31 March 2009
tom . button [AT] mei . org . uk 		Test reference: VectorsOp.html?ref=90014