1.

If \(|\vec a|\) = 3, \(\left| {\vec b} \right| = 4\) and \(\left| {\vec a - \vec b} \right| = 5,\) then what is the value of \(\left| {\vec a + \vec b} \right|\)?

A. 8
B. 6
C. 5√2
D. 5
Answer» E.


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