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#10387 Bangla Language & Literature General Level 0

ভেক্টর A↔,B↔,C↔ এর মান যথাক্রমে 12, 5 , 13 এবং A↔+B↔=C↔|A↔,B↔ ভেক্টরদ্বয়ের মধ্যবর্তী কোণের মান কত?

  1. A ππ2
  2. B ππ3
  3. C ππ4
Answer: A - ππ2

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