When two vector \( \vec{a} \) and \( \vec{b} \) are added, the magnitude of the resultant vector...

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When two vector \( \vec{a} \) and \( \vec{b} \) are added, the magnitude of the resultant vector is always
(A) greater than \( (a+b) \)
(B) less than or equal to \( (a+b) \)
\( \mathrm{P} \)
(C) less than \( (a+b) \)
(D) equal to \( (a+b) \)
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