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If A = [(1, 3, 3), (1, 4, 3), (1, 3, 4)], then A^-1 is equal to

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asked Dec 6, 2019 in Trigonometry by Rozy (41.7k points)

If A = [(1, 3, 3), (1, 4, 3), (1, 3, 4)], then A^-1 is equal to

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1 Answer

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answered Dec 6, 2019 by Vikky01 (41.4k points)
selected Dec 6, 2019 by Rozy

Best answer

Answer is (B)

= 1(16 - 9) - 3(4 - 3) + 3(3 - 4)

= 7 - 3 - 3 = 1

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