i (j k)+j (i k)+k (i j) +j (j k)= __________ . - Vidyadip

MCQ

$\hat{i} \cdot(\hat{j} \times \hat{k})+\hat{j} \cdot(\hat{i} \times \hat{k})+\hat{k} \cdot(\hat{i} \times \hat{j})$ $+\hat{j} \cdot(\hat{j} \times \hat{k})=$ __________ .

A
3
B
$-1$
✓
1
D
$0$

✓

Answer

Correct option: C.

1

C

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