Упрости выражения -1 0 1 \sin t \cos t \tg t \ctg t \sin^2 t \cos^2 t \tg^2 t \ctg^2 t \dfrac{1+\tg^2 t}{1+\ctg^2 t}= \dfrac{\sin^2 t}{1-\cos t}- \sin^2 t - \cos^2 t= \dfrac{\sin^2 t + \cos^2 t}{\tg^2 t \cdot \cos^2 t}-\dfrac{\cos^2 t}{1-\cos^2 t}=

Задание

Упрости выражения

\(-1\)
\(0\)
\(1\)
\(\sin t\)
\(\cos t\)
\(\tg t\)
\(\ctg t\)
\(\sin^2 t\)
\(\cos^2 t\)
\(\tg^2 t\)
\(\ctg^2 t\)

\(\dfrac{1+\tg^2 t}{1+\ctg^2 t}=\) [ ]

\(\dfrac{\sin^2 t}{1-\cos t}- \sin^2 t - \cos^2 t=\) [ ]

\(\dfrac{\sin^2 t + \cos^2 t}{\tg^2 t \cdot \cos^2 t}-\dfrac{\cos^2 t}{1-\cos^2 t}=\) [ ]