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Given-matrix-A-3-1-4-1-2-5-0-2-6-find-adj-adj-A-

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Question Number 100296 by bobhans last updated on 26/Jun/20
Given matrix A = [((3 1 4)),((1 2 5)),((0 2 6)) ] find: adj(adj A) ?
GivenmatrixA=[314125026]find:adj(adjA)?
Answered by bemath last updated on 26/Jun/20
adj(adj A) = ∣A∣^(n−1) .A A_(3×3) ⇒∣A∣ = 3(12−10)−1(6−0)+4(2−0) ∣A∣ = 6−6+8 = 8 ⇔adj(adj A) = (8)^(3−1) .A = 64 [((3 1 4)),((1 2 5)),((0 2 6)) ]
adj(adjA)=∣A∣n−1.AA3×3⇒∣A∣=3(12−10)−1(6−0)+4(2−0)∣A∣=6−6+8=8⇔adj(adjA)=(8)3−1.A=64[314125026]

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