Question

In: Math

If possible, find A + B, A − B, 2A, and 2A − 5B. (If not...

If possible, find

A + B, AB, 2A, and 2A − 5B.

(If not possible, enter IMPOSSIBLE.)

A =

3 −1 1
2 4 3

,    B =

−1 1 −5
−4 3 −2

(a)    A + B




(b)    AB




(c)    2A




(d)    2A − 5B


Solutions

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