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Mathematics · 2023 · 1 mark
CBSE 2023 · Region 1 · Set 1 · Q9
The value of ( i × j ) · j +( j × i ) · k is:
The value of $\displaystyle (\hat{i} \times \hat{j}) \cdot \hat{j}+(\hat{j} \times \hat{i}) \cdot \hat{k}$ is :
Official answer
(D)
$\displaystyle -1$
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