12. (a) Let A be an invertible m xm matrix and let v1, V2, ..., Vi be vectors in Rm. Show that if v1, V2, ..., Vk are li
Posted: Wed May 11, 2022 10:48 pm
12. (a) Let A be an invertible m xm matrix and let v1, V2, ..., Vi be vectors in Rm. Show that if v1, V2, ..., Vk are linearly independent vectors in Rm, then Avi, Av2, ..., Avy are also linearly independent. (b) Find an example of a non-invertible m xm matrix B and linearly independent vectors w1, W2, ..., Wk so that Bwi, Bw2, ..., Bwk are linearly dependent.