Operations of Algebraic Vectors in 3-Space(R') Ex 1: Draw the position vectors A(7,-11, 13) and B(4, -7, 25) on the xyz plane below. Vectors 1 , J and k are standard basic unit vectors. Write position vectors A and B using the standard unit vectors a) OA = ( , , )= b) OB = ( , , ) = b) Find | OA | c) Find | OB | d) Find A + B = OA + OB e) Find | A + B | f) Find A - B g) Find | A - B | h) Find AB = OB - OA = B - A I) Find | AB |