Book: Mathematics Part-II
Chapter: 10. Vector Algebra
Subject: Maths - Class 12th
Q. No. 4 of Exercise 10.1
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In Fig 10.6 (a square), identify the following vectors.
(i) Coinitial
(ii) Equal
(iii) Collinear but not equal
(i) Coinitial vectors: Two or more vectors having same initial point are called coinitial vectors.
So, in the above figure 
and 
are coinitial vectors as they have same initial point.
∴ Coinitial vectors: 
and 
(ii) Equal vectors: Two or more vectors having same direction and same magnitude are called equal vectors.
So, in the above figure 
and 
are equal vectors as they have same magnitude and same direction.
∴ Equal vectors: 
and 
(iii) Collinear but not equal:
∵ 
and 
are parallel vectors, so, they are collinear. But they have opposite direction, so, they are not equal.
Hence, 
and 
are collinear but not equal.
