The magnitude of the projection of the vector
P \( 2 \hat{\mathrm{i...
The magnitude of the projection of the vector
P \( 2 \hat{\mathrm{i}}+3 \hat{\mathrm{j}}+\hat{\mathrm{k}} \) on the vector perpendicular to the plane
W containing the vectors \( \hat{i}+\hat{j}+\hat{k} \) and \( \hat{i}+2 \hat{j}+3 \hat{k} \), is
(1) \( \frac{\sqrt{3}}{2} \)
(2) \( \sqrt{6} \)
(3) \( \sqrt{\frac{3}{2}} \)
(4) \( 3 \sqrt{6} \)
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