4‐169 (mod): The coordinate direction angles of the force are 60 , 120 , o o     45o   . Determine the moment of the force about (a) point O using scalar formulation and express it as a Cartesian vector (b)point O using vector formulation and express it as a Cartesian vector (c) point A using scalar formulation and express it as a Cartesian vector (d) point A using vector formulation and express it as a Cartesian vector