Question

Matrix operations possess many properties. Let A, B and C be 3 matrices of the same size n x n, and d and e be 2 different real number scalars. Which of the following is NOT one of the properties?

d(AB) = (dA)B = A(dB)

A(BC) = (AB)C

d(eA) = (de)A

(A+B)^2 = A^2 + 2AB + B^2

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Answer 1

Answer:

d(43+)89123344edggghikjnkoi

you rude

Answer 2

(A+B)² = A² + 2AB + B² is the wrong one among the given matrix properties.

If A and B are any two square matrices,

(A+B)² = (A+B) (A+B)

          = A.A + A.B + B.A + B.B

          = A² + A.B + B.A + B²

All other given properties are correct.

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