tgC = [tex]\frac{AB}{BC}[/tex]
BC = [tex]\frac{\frac{AB}{AB} }{BC}[/tex] = [tex]\frac{AB}{tgC}[/tex] = [tex]\frac{5}{tgC}[/tex]
Ответ: 2
(C удобнее писать чем γ)
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tgC = [tex]\frac{AB}{BC}[/tex]
BC = [tex]\frac{\frac{AB}{AB} }{BC}[/tex] = [tex]\frac{AB}{tgC}[/tex] = [tex]\frac{5}{tgC}[/tex]
Ответ: 2
(C удобнее писать чем γ)