Hoang Giang Share
Janusz
办美国文凭加拿大文凭澳洲文凭英国文凭学位证毕业证成绩单
Veinas bọt EPE máy móc
Wendy Ye
Suppose A is an m ×n matrix and there exist n ×m matrices C and D such that C A=I_n a…
70 views
20 hours ago
Suppose A is an m ×n matrix and there exist n ×m matrices C and D such that C A=I_n a…
![Compute the following : [[a^2+b^2, b^2+c^2], [a^2+c^2, a^2+b^2]] + [[2ab, 2bc], [-2ac, -2ab]]](http://i.ytimg.com/vi/UjN-EFj-UnI/mqdefault.jpg "Compute the following : [[a^2+b^2, b^2+c^2], [a^2+c^2, a^2+b^2]] + [[2ab, 2bc], [-2ac, -2ab]]")
![Prove that |[1 +a^2 -b^2, 2ab, -2b],[2ab, 1-a^2 +b^2, 2a],[2b, -2a, 1-a^2 -b^2]| = (1 + a^2 + b^2)^3](http://i.ytimg.com/vi/B7UwIYXEcX8/mqdefault.jpg "Prove that |[1 +a^2 -b^2, 2ab, -2b],[2ab, 1-a^2 +b^2, 2a],[2b, -2a, 1-a^2 -b^2]| = (1 + a^2 + b^2)^3")
![Consider an n ×n matrix A=[[ v⃗_1 v⃗_2 ⋯ …⃗ ]](http://i.ytimg.com/vi/Qm7Ra-pix8o/mqdefault.jpg "Consider an n ×n matrix A=[[ v⃗_1 v⃗_2 ⋯ …⃗ ]")
![Matrix Help: Suppose AB = [ 5 4 -2 3 ] and B = [ 7 3 2 1 ]. Find A - Techniques](http://i.ytimg.com/vi/bb5zHh3sh-8/mqdefault.jpg "Matrix Help: Suppose AB = [ 5 4 -2 3 ] and B = [ 7 3 2 1 ]. Find A - Techniques")
