Question

Giải giúp

Answer 1

Answer 2

\(sinC=\dfrac{AB}{BC}=\dfrac{3}{5}\)

\(cosC=\dfrac{AC}{BC}=\dfrac{4}{5}\)

\(tanC=\dfrac{AB}{AC}=\dfrac{3}{4}\)

\(cotC=\dfrac{AC}{AB}=\dfrac{4}{3}\)

Answer 3

\(\sin\widehat{C}=\dfrac{AB}{BC}=\dfrac{3}{5}\)

\(\cos\widehat{C}=\dfrac{AC}{BC}=\dfrac{4}{5}\)

\(\tan\widehat{C}=\dfrac{AB}{AC}=\dfrac{3}{4}\)

\(\cot\widehat{C}=\dfrac{AC}{AB}=\dfrac{4}{3}\)