Which Statement Is True About the Unit Vectors

question 39

Multiple Choice

Which statement is true about the unit vectors
,
And
?

• A)Their directions are defined by a left-handed coordinate system.
• B)The angle between any two is 90 degrees.
• C)Each has a length of 1 m.
• D)If is directed east and is directed south, points up out of the surface.
• E)All of the above.

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Definitions:

Negative Outcome Expectancy

The belief or anticipation that actions or events will lead to undesirable results.

Pessimistic Attributions

The tendency to explain the causes of negative events in one's life as internal, stable, and global.

Anchoring Effect

A cognitive bias where an individual relies too heavily on an initial piece of information (the "anchor") when making decisions.

Confirmation Bias

The inclination to seek out, interpret, prefer, and remember data in a manner that affirms one's existing beliefs or hypotheses.