If C = (3, -1, 2) and D = (0, 4, -3), what is the value of C · D?

Practice Questions

Q1
If C = (3, -1, 2) and D = (0, 4, -3), what is the value of C · D?
  1. -10
  2. 10
  3. 0
  4. 6

Questions & Step-by-Step Solutions

If C = (3, -1, 2) and D = (0, 4, -3), what is the value of C · D?
  • Step 1: Identify the components of vector C, which are (3, -1, 2).
  • Step 2: Identify the components of vector D, which are (0, 4, -3).
  • Step 3: Multiply the first component of C (3) by the first component of D (0). This gives 3 * 0 = 0.
  • Step 4: Multiply the second component of C (-1) by the second component of D (4). This gives -1 * 4 = -4.
  • Step 5: Multiply the third component of C (2) by the third component of D (-3). This gives 2 * -3 = -6.
  • Step 6: Add the results from Steps 3, 4, and 5 together: 0 + (-4) + (-6).
  • Step 7: Calculate the sum: 0 - 4 - 6 = -10.
  • Dot Product – The dot product of two vectors is calculated by multiplying their corresponding components and summing the results.
  • Vector Components – Understanding the individual components of vectors is crucial for performing operations like the dot product.
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