For any vector \( a \), the value of \( (a \times i)^{2}+(a \times ...
For any vector \( a \), the value of \( (a \times i)^{2}+(a \times j) 2+ \)
\( \mathrm{P} \) \( (a \times k)^{2} \) is equal to
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(1) \( 4 a^{2} \)
(2) \( 2 a^{2} \)
(3) \( a^{2} \)
(4) \( 3 a^{2} \)
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