Respuesta :

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[tex] \cos(60) = \frac{ \sqrt{3} }{u} \\ \frac{1}{2} = \frac{ \sqrt{3} }{u} \\ u = 2 \sqrt{3} [/tex]
[tex] {v}^{2} + 3 = {u}^{2} \\ {v}^{2} + 3 = 12 \\ v = 3[/tex]