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Lorenamor
@Lorenamor
August 2019
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Dadas as matrizes A= | -1 3 2 -8| e B= | 2 -1 3 0|, determine:
det A. det B
det ( AB)
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JK1994
Vamos lá:
a) Det A.Det B
Det A = (-1.-8) - (2.3) = 8 - 6 = 2
Det B = (2.0)-(3.-1) = 0 - (-3) = 3
Det A.Det B = 2.3 = 6
b) Det (AB)
Det (AB) = (7.9) - (1.-3) = 63 + 3 = 66
Espero ter ajudado.
5 votes
Thanks 10
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Lista de comentários
a) Det A.Det B
Det A = (-1.-8) - (2.3) = 8 - 6 = 2
Det B = (2.0)-(3.-1) = 0 - (-3) = 3
Det A.Det B = 2.3 = 6
b) Det (AB)
Det (AB) = (7.9) - (1.-3) = 63 + 3 = 66
Espero ter ajudado.