If show that . Interpret the result geometrically.
Now, ...(1)Similarly, ...(2)From (1) and (2), we get, Let
If and then , where is a scalar.
If
If and then
If are mutually perpendicular unit vectors and then
If is parallel to
If are three vectors such that show that the three vectors are orthogonal in pairs and .
Short Answer Type
Long Answer Type
are three vectors such that 
show that the three vectors 
are orthogonal in pairs and 
.
Is the converse true? 
show that 
. Interpret the result 
...(2)
Switch
then prove that 
where m is a scalar.
and 
then 
, where 
is a scalar.
and 
then 
are mutually perpendicular unit vectors and 
then 
is parallel to 
.
and give a geometrical interpretation of it.
