1.

`[overset(rightarrow)(a) overset(rightarrow)(b)overset(rightarrow)(c)]` का मान ज्ञात कीजिएः यदि `overset(rightarrow)(a) =hati+hatj+hatk, overset(rightarrow)(b)=hati-hatj+hatk, overset(rightarrow)(c)=hati+2hatj-hatk`

Answer» Correct Answer - 4
`[veca vecb vecc]=|{:(,a_(1),a_(2),a_(3)),(,b_(1),b_(2),b_(3)),(,c_(1),c_(2),c_(3)):}|`


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