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| PAGE: 320 | SET: Exercises | PROBLEM: 55 |
The vectors 
and 
.
Rewrite the vectors as 
and 
.
The vectors 
and 
are orthogonal If 
.
The dot product of the vectors 
and 
is
defined as 
.
Since the dot product is not equals to zero, the vectors 
and 
are
not orthogonal.
The dot product of the vectors and is 
.
If the vectors and are parallel, then angle between the vectors is zero.
The magnitude of vector :
The magnitude of vector :
.
.
Since 
, the vectors and are not parallel to each other.
The vectors and are neither orthogonal nor parallel.
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