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JEE Mains · Maths · STD 12 - 3 and 4 . metrices and determinant

यदि \(A\) एक \(3 \times 3\) कोटी एक आव्यूह है और \(\operatorname{det}\) \(( A )=2\) है। तब \(\operatorname{det}\left(\operatorname{det}( A ) \operatorname{adj}\left(5 \operatorname{adj}\left( A ^3\right)\right)\right)\) बराबर होगा

  1. A \(512 \times 10^{6}\)
  2. B \(256 \times 10^{6}\)
  3. C \(1024 \times 10^{6}\)
  4. D \(256 \times 10^{11}\)
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Answer & Solution

Correct Answer

(A) \(512 \times 10^{6}\)

Step-by-step Solution

Detailed explanation

\(|(\operatorname{det}( A )) \operatorname{adj}(5 \operatorname{adj}( A ))|\) \(=\left|2\, \operatorname{adj}\left(5 \operatorname{adj}\left( A ^{3}\right)\right)\right|\) \(=2^{3} \operatorname{ladj}\left(5 \operatorname{adj}\left( A ^{3}\right) \|\right.\)…
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