What is the unit vector perpendicular to the following vectors \( 2...

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What is the unit vector perpendicular to the following vectors \( 2 \hat{i}+2 \hat{j}-\hat{k} \) and \( 6 \hat{i}-3 \hat{j}+2 \hat{k} \)
\( \mathrm{P} \)
(1) \( \frac{\hat{i}+10 \hat{j}-18 \hat{k}}{5 \sqrt{17}} \)
(2) \( \frac{\hat{i}-10 \hat{j}+18 \hat{k}}{5 \sqrt{17}} \)
W.
(3) \( \frac{\hat{i}-10 \hat{j}-18 \hat{k}}{5 \sqrt{17}} \)
(4) \( \frac{\hat{i}+10 \hat{j}+18 \hat{k}}{5 \sqrt{17}} \)
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