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If is perpendicular to both and where = k and =2 i +3 j +4 k , then what is equal to?

Options

  1. A3 i +2 j
  2. B-3 i +2 j
  3. C2 i -3 j
  4. D-2 i +3 j

Correct answer

B. -3 i +2 j

Step-by-step solution

B = | array ccc i & j & k 0 & 0 & 1 2 & 3 & 4 array | B = 1(3 i -2 j )= (3 i -2 j )

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