Question

известно,что sin t =-0,8.вычеслите cos t tgt ctgt ​

Answer 1

$\sin(t) = - 0.8 \\ {( \sin(x)) }^{2} + {( \cos(x)) }^{2} = 1 \\ \cos(t) = \sqrt{(1 - {0.8}^{2}) } = 0.6 \\ \tan(t) = \frac{ \sin(t) }{ \cos(t) } = \frac{ - 0.8}{0.6} = - 1 \frac{1}{3} \\ \cot(t) = \frac{ \cos(t) }{ \sin(t) } = \frac{0.6}{ - 0.8} = - 0.75$