kat-alpha-jest-ostry-i-displaystyle-cosalpha-frac513-wtedy
Zadanie
Kąt jest ostry i . Wtedy
A)
\displaystyle \sin\alpha= \frac{12}{13} oraz \displaystyle \tg\alpha= \frac{12}{5}
B)
\displaystyle \sin\alpha= \frac{12}{13} oraz \displaystyle \tg\alpha= \frac{5}{12}
C)
\displaystyle \sin\alpha= \frac{12}{5} oraz \displaystyle \tg\alpha= \frac{12}{13}
D)
\displaystyle \sin\alpha= \frac{5}{12} oraz \displaystyle \tg\alpha= \frac{12}{13}