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MHT CET2008MathematicsVector Algebra

If a i =4 , then ( a j ) (2 j -3 k ) is equal to

Options

  1. A12
  2. B2
  3. C0
  4. D-12

Correct answer

D. -12

Step-by-step solution

( a j ) (2 j -3 k )= a j (2 j -3 k ) array l = a -3( j k ) =-3( a i ) =-12 ( a i =4 given ) array

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