imo class 12 vector algebra

If a = i + 2j and b = 3i − j, then a + b equals:

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If a = i + 2j and b = 3i − j, then a + b equals:

  • A. 4i + j
  • B. 2i + j
  • C. 4i − 3j
  • D. 3i + j

Answer: A) 4i + j

Explanation: Add corresponding components.

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