2010015309

SubArea: 
Level: 
Project ID: 
2010015309
Source Problem: 
Accepted: 
0
Clonable: 
1
Easy: 
1
The right angled triangle \(ABC\) is given (See the picture.). Choose the correct statement.
\(\mathrm{tg}\,\alpha = \frac{a} {b}\)
\(\sin \beta= \frac{a} {c}\)
\(\cos \beta = \frac{a} {b}\)
\(\mathrm{tg}\,\beta = \frac{a} {b}\)