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

ધારોકે \(A\) એ કક્ષા \(3 × 3\) વાળો શ્રેણિક છે અને \(\operatorname{det}(A)=2\) છ. તો \(\operatorname{det}\left(\operatorname{det}(A) \operatorname{adj}\left(5 \operatorname{adj}\left(A^{3}\right)\right)\right)=\)................

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

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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