MCQ
જો $\vec a \,\, = \,\,2i\,\, - \,\,3j\,\, + \;\,4k$ અને $\vec b \,\, = \,\,i\,\, + \;\,2j\,\, - \,\,k$ તો $\vec a \,\, + \;\,\vec b \,\, = \,\,.........$
- A$i + j + 3k$
- ✓$3i - j + 3k$
- C$i - j - 3k$
- D$2i + j + k$
$= \,\,3i\,\, - \,\,j\,\, + \;\,3k$
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