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Alchen [17]
3 years ago
9

If A2 = A, which matrix is matrix A?Picture attached

Mathematics
2 answers:
WITCHER [35]3 years ago
8 0

Answer:

[ 5  5]    

[-4 -4]

Step-by-step explanation:

Its the first one

[ 5 5]  *   [ 5 5]

[-4 -4]    [-4 -4]

= [5*5 + 5*-4        5*5 + 5*-4]

  [-4*5 + -4*-4     -4*5 + -4*-4]

=   [ 5  5]

    [-4 -4]

Orlov [11]3 years ago
3 0

Answer:

The first one and the third one.

Step-by-step explanation:

I did the Plato Math

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