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KCET2019MathematicsDeterminants

The constant term in the expansion of ( | array ccc 3 x+1 & 2 x-1 & x+2 5 x-1 & 3 x+2 & x+1 7 x-2 & 3 x+1 & 4 x-1 array | ) is

Options

  1. A( 12 )
  2. B( 06 )
  3. C( 00 )
  4. D( -10 )

Correct answer

B. ( 06 )

Step-by-step solution

(B) Take ( x=0 ) [ array c | array ccc 1 & -1 & 2 -1 & 2 & 1 -2 & 1 & -1 array | =1(-3)+1(3)+2(3)=6 array ]

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