1.

If two vectors \(\vec A\;and\;\vec B\) are at an angle θ ≠ 0°, then _________.

A. \(\left| {\vec A} \right| + \left| {\vec B} \right| = \left| {\vec A + \vec B} \right|\)
B. \(\left| {\vec A} \right| + \left| {\vec B} \right| > \left| {\vec A + \vec B} \right|\)
C. \(\left| {\vec A} \right| + \left| {\vec B} \right| < \left| {\vec A + \vec B} \right|\)
D. \(\left| {\vec A} \right| + \left| {\vec B} \right| = \left| {\vec A - \vec B} \right|\)
Answer» E.


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