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If A is a matrix of order 3×3, lAl =4 , find l3Al

Posted by Sneha Krupasagar 6 years, 2 months ago

CBSE > Class 12 > Mathematics

5 answers

Riti Bansal 6 years, 2 months ago

108

Mukan Jangra????? 6 years, 2 months ago

Order of matrix is 3×3 it means n=3 |3A|=3³|A| |A|=4 Therefore ,27×4=108

Dolly ?️ 6 years, 2 months ago

If A is a matix of mxm order, |A|=a Then, |kA|=k^m|A| or k^m.a

Sneha Krupasagar 6 years, 2 months ago

How?

Uma Bharti Chauhan 6 years, 2 months ago

36

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