ভেক্টর রাশি-২

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\(\vec{P}\) ও \(\vec{Q}\) পরস্পরের বিপরীত ভেক্টর হলে -
(i) \(\vec{P}+\vec{Q}=0\)
(ii) \(\vec{P}.\vec{Q}=0\)
(iii) \(\vec{P}\times{\vec{Q}}=0\)
নিচের কোনটি সঠিক ?
[ চঃ ২০১৫ ]

(i)
(i) ও (ii)
(i) ও (iii)
(i), (ii) ও (iii)
উপরের কোনোটিই নয়

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Ans: (i) ও (iii)
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