Question

Questão 1) No CÍRCULO TRIGONOMÉTRICO, qual o QUADRANTE dos ângulos abaixo:
a) 580°
b) –580°
c) 2570°
d) –2570°​

Answer 1

$\Large\boxed{\begin{array}{l}\tt a) ~\sf 580^\circ=1\cdot360^\circ+220^\circ\\\sf 3^o~quadrante\\\tt b)~\sf -580^\circ=-1\cdot360^\circ-220^\circ\\\sf 360^\circ-220^\circ=140^\circ\\\sf 2^o~quadrante\\\tt c)~\sf2570^\circ=7\cdot360^\circ+50^\circ\\\sf 1^o~quadrante\\\tt d)~\sf -2570^\circ=-7\cdot360^\circ-50^\circ\\\sf 360^\circ-50^\circ=310^\circ\\\sf 4^o~quadrante\end{array}}$