Question

Define i) Unit vector ii) Negative vector​

Answer 1

Answer:

(i) In mathematics, a unit vector in a normed vector space is a vector of length 1. A unit vector is often denoted by a lowercase letter with a circumflex, or "hat", as in.

(Il) A negative vector is a vector which points in the direction opposite to the reference positive direction. ... A negative vector is a vector that has the opposite direction to the reference positive direction. Like scalars, vectors can also be added and subtracted.

Answer 2

i) A unit vector is a vector of length 1, sometimes also called a direction vector (Jeffreys and Jeffreys 1988). The unit vector having the same direction as a given (nonzero) vector is defined by. where denotes the norm of , is the unit vector in the same direction as the (finite) vector .

ii) Vectors having the same length as a particular vector but the opposite direction are called negative vectors. A negative sign will reverse the direction of a vector and make it a negative vector. Vectors are only negative with respect to another vector.