MCQ Practice Physics 📖 তিনটি ভেক্টর , →a,→B,→C যাদের মান যথাক্রমে 4,3 এবং 5, যোগ করলে শূন্য হয় অর্থ্যৎ →a+→B+→C=0 তাহলে |→C×(→a×→b)| এর মান ... Favorite Practice Add to Book Explanation & Answer Detailed explanations and answers are restricted. Unlock full access by logging in to your account. 🔒 Unlock the detailed explanation and answers Log In / Sign Up This question appeared in DU KA Unit Question Bank Physics 2018-19 Question 17 DU KA Unit Question Bank Physics 2018-19 Question 17