This test uses JavaScript to generate your test and mark it. You therefore need to enable Scripting using the Preferences... item in one of the Menu items for this Browser's window. Once enabled, just Reload (Refresh) this page.

Vectors: Operations
(
–3
0
–1
)
.
(
7
–3
6
)
 =

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:
(
–3
0
–1
)
 .
(
7
–3
6
)
 = (–3)×7 + 0×(–3) + (–1)×6 = –27

© MEI Produced by Dr Ron Knott, revised 31 March 2009
tom . button [AT] mei . org . uk 		Test reference: VectorsOp.html?ref=84349,qu=.