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If A=[{:(1,2),(4,2):}], then show that ...

If `A=[{:(1,2),(4,2):}]`, then show that `|2A|=4|A|`.

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CHHAYA PUBLICATION-DETERMINANT -Sample Questions for Competitive Examination (Assertion -Reason Type )
  1. If A=[{:(1,2),(4,2):}], then show that |2A|=4|A|.

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  2. Evaluate the determinants |{:(ax,y,z),(x,ay,z),(x,y,az):}|

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