${\rm{\hat i}}\,\,{\rm{ - }}\,\,{\rm{\hat j}}\,\, + \;\,{\rm{\hat k}}\,$ અને $\,{\rm{\hat i}}\,\, + \,\,{\rm{\hat j}}\,\, + \;\,{\rm{\hat k}}$ બે સદીશોનો એકમ લેબં સદીશ શોધો .
- A$\hat i\,\, + \,\,\hat j$
- B$\frac{{ - \hat i\,\, + \;\,\hat k}}{{\sqrt 2 }}$
- C$\hat j\,\, + \,\,\hat k$
- D$\left( {\hat j\,\, + \,\,\hat i} \right)\,\,\sqrt 2 $
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