How many of the following matrices have an eigenvalue 1? A = [1 0; 0 0], B =…

GATE · 2008 · CS

How many of the following matrices have an eigenvalue 1?

A = [1  0; 0  0],
B = [0  1; 0  0],
C = [1  -1; 1  1],
D = [-1  0; 1  -1]

  1. A.

    Four

  2. B.

    Three

  3. C.

    Two

  4. D.

    One

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