1. Encontre os valores de: a) cos (135°); b) sin (\frac{10...

Encontre os valores de:

a) cos (135°);

b) sin (\frac{10\pi}{6});

c) sin (270°);

d) tg (1,25 . \pi).

Agora, localize os ângulos no círculo trigonométrico.

$1. Encontre os valores de: a) cos (135°); b) sin (\frac{10\pi}{6}); c) sin (270°); d) tg (1,25 . \pi). Agora, localize os ângulos no círculo trigonométrico.$

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