Find (| vec{a}+ vec{b}| ), if (| vec{a}|=3 ,and ,| vec{b}|=4 ,and – McqOptions

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1.	Find (\| vec{a}+ vec{b}\| ), if (\| vec{a}\|=3 ,and ,\| vec{b}\|=4 ,and , vec{a}. vec{b}=6 ).
A.	34
B.	( sqrt{37} )
C.	13
D.	( sqrt{23} )
Answer» C. 13

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