If A = 6i + 8j and B = 2i + 3j, calculate A · B.

Practice Questions

Q1
If A = 6i + 8j and B = 2i + 3j, calculate A · B.
  1. 36
  2. 42
  3. 38
  4. 30

Questions & Step-by-Step Solutions

If A = 6i + 8j and B = 2i + 3j, calculate A · B.
  • Step 1: Identify the components of vector A. A = 6i + 8j means A has a component of 6 in the i direction and 8 in the j direction.
  • Step 2: Identify the components of vector B. B = 2i + 3j means B has a component of 2 in the i direction and 3 in the j direction.
  • Step 3: Multiply the i components of A and B. This means calculate 6 (from A) times 2 (from B), which equals 12.
  • Step 4: Multiply the j components of A and B. This means calculate 8 (from A) times 3 (from B), which equals 24.
  • Step 5: Add the results from Step 3 and Step 4 together. So, 12 (from Step 3) plus 24 (from Step 4) equals 36.
  • Step 6: The final result of A · B is 36.
No concepts available.
Soulshift Feedback ×

On a scale of 0–10, how likely are you to recommend The Soulshift Academy?

Not likely Very likely