VECTOR

MAGNITUDE OF A VECTOR

The magnitude of a vector a, sometimes called the modulus of the vector is represented by |a|.

Zero Vector:  The zero vector is a vector with zero magnitude.

Unit Vector:  The unit vector is the vector represented by a and is such that a = |a| a

Negative Vector:     The negative vector of a is written as – a

Equality of vector:   Two vectors are equal when they have same magnitude and direction.

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