[tex](2)( \tan(30 ^{ \circ})) - (5)( \tan(60^{ \circ})) \\\\ (2)(\tan(30 ^{\circ}))=1,15470 \ \ \ \ \textrm{Rendondeado=1,155 }\\ \\ (5)( \tan(60^{ \circ}))=8,66025 \ \ \ \ \textrm{Redondeado=8,660}\\ \\ 1,155- 8,660 = \boxed{7.505} \ \ \ Redondeado= 7,51[/tex]