What is the dot product of and ?

Answer and explanation

Correct answer: A. 24

  1. Step 1: The inner product of vectors and is .
  2. Step 2: Multiply corresponding unit vector coefficients from and .
  3. Step 3: Summing the components yields .
Answer
24.
Why not the others: -24 reverses the sign of the scalar dot product; 15 is an underestimation arithmetic miscalculation; 28 is an overestimation arithmetic miscalculation.

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