Explicație pas cu pas:
A = 90°; AB = 6cm; BC = 10cm; CA = 8cm
[tex]sinB = \frac{AC}{BC} = \frac{8}{10} = \frac{4}{5} [/tex]
[tex]sinC = \frac{AB}{BC} = \frac{6}{10} = \frac{3}{5} [/tex]
[tex]cosB = \frac{AB}{BC} = \frac{6}{10} = \frac{3}{5} [/tex]
[tex]cosC = \frac{AC}{BC} = \frac{8}{10} = \frac{4}{5} [/tex]
[tex]ctgB = \frac{AB}{AC} = \frac{6}{8} = \frac{3}{4}[/tex]
[tex]tgC = \frac{AB}{AC} = \frac{6}{8} = \frac{3}{4} [/tex]
[tex]tgB = \frac{AC}{AB} = \frac{8}{6} = \frac{4}{3}[/tex]
[tex]ctgC = \frac{AC}{AB} = \frac{8}{6} = \frac{4}{3}[/tex]