The vectors \( A B=3 i-2 j+2 k \) and \( B C=-i-2 k \) are the adjacent sides of a parallelogram.... VIDEO
The vectors \( A B=3 i-2 j+2 k \) and \( B C=-i-2 k \) are the adjacent sides of a parallelogram. An angle
\( \mathrm{P} \)
between its diagonals is
W
(1) \( \frac{\pi}{4} \)
(2) \( \frac{\pi}{3} \)
(3) \( \frac{\pi}{2} \)
(4) \( \frac{2 \pi}{3} \)
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