kat-alpha-jest-ostry-i-displaystyle-cosalpha-frac35-wtedy

A)

$\displaystyle \sin\alpha \cdot \tg\alpha= \frac{16}{15}$ \displaystyle \sin\alpha \cdot \tg\alpha= \frac{16}{15}

B)

$\displaystyle \sin\alpha \cdot \tg\alpha= \frac{15}{16}$ \displaystyle \sin\alpha \cdot \tg\alpha= \frac{15}{16}

C)

$\displaystyle \sin\alpha \cdot \tg\alpha= \frac{8}{15}$ \displaystyle \sin\alpha \cdot \tg\alpha= \frac{8}{15}

D)

$\displaystyle \sin\alpha \cdot \tg\alpha= \frac{6}{20}$ \displaystyle \sin\alpha \cdot \tg\alpha= \frac{6}{20}