Question

Найти cos t tg t и ctg t если sin t равен 0,25

Answer 1

$cost= \sqrt{1-sin^2t} \\ tgt = \frac{sint}{cost} \\ ctgt= \frac{cost}{sint} \\ cost= \sqrt{1-0.0625}=0.96 \\ tgt= \frac{0.25}{0.96}=0.26 \\ ctgt= \frac{0.96}{0.25}=3.84$