A is a rank 1 , 3×3 matrix the null space is 2 Dimensional ,So A has eigenvalue 0 repeated twice.

A= ⎜4 2 4 ⎟
⎟ 2 1 2 ⎟
⎟ 4 2 4⎟

How can you say by looking at this matrix , that it has repeated eigenvalue 0 ??

Question

A is a rank 1 , 3×3 matrix the null space is 2 Dimensional ,So A has eigenvalue 0 repeated twice.

A= ⎜4 2 4 ⎟
    ⎟ 2 1 2 ⎟
    ⎟ 4 2  4⎟

How can you say by looking at this matrix , that it has repeated eigenvalue 0 ??

epoweritheta · Answer

why cant a matrix A have more than n independent eigenvectors ??
@ganeshie8

epoweritheta · Answer

@adrynicoleb  @ShadowLegendX  @Screech