- #1

Janiceleong26

- 276

- 4

**1. Homework Statement**

I've found the dimension of V to be 3.

According to the solutions, it seems that the basis can be written straight away, { (1,1,1,2), (1,2,-3,1), (3,4,-1,5) } (which is also the basis for the column space of the matrix), without verifying the vectors are linearly independent.. how come? The vectors in the matrix are not necessary linearly independent..