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KCET2015MathematicsContinuity and Differentiability

If ( A = [ array ll & 2 2 & array ] ) and ( | A ³ |=27 ), then ( = )

Options

  1. A( 1 )
  2. B( 2 )
  3. C( 7 )
  4. D( 0 5 )

Correct answer

C. ( 7 )

Step-by-step solution

Given that A= [ array ll & 2 2 & array ] And |A³ |=27=|A|³ |A|=3 So, |A|= ²-4=3 ²=7 = 7

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