If a i=a (i+j)=a (i+j+k), then a is equal to - Vidyadip

MCQ

If $\bar{a} \cdot \hat{i}=\bar{a} \cdot(\hat{i}+\hat{j})=\bar{a} \cdot(\hat{i}+\hat{j}+\hat{k})$, then $\bar{a}$ is equal to

A
$\hat{ i }+\hat{ j }+\hat{ k }$
B
$\hat{ i }$
C
$\hat{j}$
D
$\hat{ k }$

✓

Answer

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