Question

Quanto valem cos 3π/4 e tg 2π , respectivamente?

a) 1/2 e 0

b) √3/2 e 1

c) - √2/2 e 0

d) -1/2 e 0

e)n.d.a.​

Answer 1

$\huge\boxed{\boxed{\boxed{\boxed{\mathsf{cos(\dfrac{3\pi}{4}) =-\dfrac{\sqrt{2}}{2}}}}}}$

$\huge\boxed{\boxed{\boxed{\boxed{\mathsf{tg(2\pi)=0}}}}}$

$\huge\boxed{\boxed{\boxed{\boxed{\mathsf{\maltese~~alternativa~~c}}}}}$

Answer 2

Oie, Td Bom?!

>>> Resposta: Opção C.

$\cos( \frac{3\pi}{4} ) = - \frac{ \sqrt{2} }{2}$

$\tan(2\pi) = 0$

Att. Makaveli1996