00:01
Hi, the question says that to find out the magnitude of a given vector and the unit vector of it.
00:06
So we will consider that the vector is given i cap minus 2 j cap minus 3 k cap.
00:16
So this is the given vector.
00:18
Now how to find out the magnitude and unit vector c? a vector can be represented by its magnitude and its unit vector.
00:29
So, where a vector within modulus, this is the magnitude of this vector, okay? that means the scalar part and a cap, this is the unit vector, that means the direction part.
00:45
So unit vector is a vector that determines the direction of a vector and it is always the magnitude of unity, okay? that means one.
00:57
So, what will be the magnitude? so magnitude of a vector will be equal to there is one before i cap, so it will be one square, then plus minus two j two whole square, then plus minus three whole square...