Question

como calcula a tangente de 135??

Answer 1

Fórmula da tangente:


$\boxed{Tgx = \frac{senx}{cosx}}$

$Sen\ 135 = \frac{\sqrt{2}}{2}\\ Cos\ 135 = \frac{-\sqrt{2}}{2}$

Portanto:

$\boxed{Tg135 = \frac{ \frac{\sqrt{2}}{2}}{ \frac{-\sqrt{2}}{2}}}$


$\boxed{\therefore\ Tg\ 135 = -1}$