MCQ
The value of expression $\hat{i}, \hat{i}-\hat{j} \cdot \hat{j}+\hat{k} \cdot \hat{k}$ is $-$
  • A
    $0$
  • $1$
  • C
    $2$
  • D
    $3$

Answer

Correct option: B.
$1$
$1$

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