a) [tex3]\frac{sena}{10}=\frac{senb}{12}=\frac{senc}{14}[/tex3]
b) [tex3]\frac{sena}{12}=\frac{senb}{14}=\frac{senc}{10}[/tex3]
c) [tex3]\frac{sena}{10}=\frac{senb}{14}=\frac{senc}{12}[/tex3]
d) [tex3]\frac{sena}{14}=\frac{senb}{12}=\frac{senc}{10}[/tex3]
e) [tex3]\frac{sena}{14}=\frac{senb}{10}=\frac{senc}{12}[/tex3]
Resposta
d