Please solve no. 12 and no. 30 in file scan005.jpg.© BrainMass Inc. brainmass.com September 19, 2018, 3:32 am ad1c9bdddf - https://brainmass.com/math/geometry-and-topology/subspaces-basis-dimension-rank-168501
Please see the attached file for the complete solution.
Thanks for using BrainMass.
Subspaces, Basis, Dimension and Rank are investigated. The solution is detailed and well presented. The response received a rating of "5/5" from the student who originally posted the question.