Page No 440:
Question 9:
For given vectors, 
and 
, find the unit vector in the direction of the vector 
Page No 440:
Question 15:
Find the position vector of a point R which divides the line joining two points P and Q whose position vectors are 
respectively, in the ration 2:1
(i) internally
(ii) externally
Page No 447:
Question 5:
Show that each of the given three vectors is a unit vector:
Also, show that they are mutually perpendicular to each other.
Page No 454:
Question 8:
If either 
or
, then
. Is the converse true? Justify your answer with an example.
Page No 458:
Question 9:
Find the position vector of a point R which divides the line joining two points P and Q whose position vectors are
externally in the ratio 1: 2. Also, show that P is the mid point of the line segment RQ.
are equal
is perpendicular to
, for any two nonzero vectors
, then what can be concluded about the vector
?
and
. What can you conclude about the vectors
?
, then is it true that
? Justify your answer.
