Answer to Question #59203 in Linear Algebra for RITA

Question

1 Find the angle between A=2x+2j−kand B=6i−3j+2k
2 Determine the value of a so that A=2i+aj+kand B=4i−2j−2k are perpendicular
3 Determine a unit vector perpendicular to the plane of A=2i−6j−3k and B=4i+3j−k
4 Find the work done in moving an object along a vector r=3i+2j−5k
5 Given that A=2i−j+3kand B=3i+2j−k, find A⋅B