MCQ
यदि $\vec{a}=2 \vec{i}-3 \vec{j}+4 \vec{k}$ और $ \vec{b}=\vec{i}+2 \vec{j}+\vec{k}$ तो $\vec{a}+\vec{b}= $
  • A
    $\vec{i}+\vec{j}+3 \vec{k}$
  • $3 \vec{i}-\vec{j}+5 \vec{k}$
  • C
    $\vec{i}-\vec{j}-3 \vec{k}$
  • D
    $2 \vec{i}+\vec{j}+\vec{k}$

Answer

Correct option: B.
$3 \vec{i}-\vec{j}+5 \vec{k}$
B

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free