Question

if position vector r = 3i + 4j. Find (a) magnitude of position vector (b) direction of position vector (c) unit vector of position vector.

Answer 1

Answer:

If the position Vectors of three points A,B,C are i + j + k, 2i + 3j - 4k and 3i + 2j + k respectively, then the unit vector perpendicular to the