Question

1) Indique em qual quadrante se encontra cada ângulo abaixo.

me ajudem pfvr! ​

Answer 1

$\boxed{\begin{array}{l}\rm 1)\\\tt a)~\sf270^\circ\in3^o~quadrante\\\tt b)~\sf120^\circ\in2^o~quadrante\\\tt c)~\sf-85^\circ\in3^o~quadrante\\\tt d) ~\sf425^\circ\in 1^o~quadrante\\\tt e)~\sf-275^\circ\in1^o~quadrante\\\tt f)~\sf714^\circ\in4^o~quadrante\\\tt g)~\sf1270^\circ\in3^o~quadrante\\\tt h)~\sf-760^\circ\in1^o~quadrante\\\tt i)~\sf3^\circ\in1^o~quadrante\\\tt j)~\sf-17^\circ\in4^o~quadrante\end{array}}$

$\boxed{\begin{array}{l}\rm 2)\\\tt a)~\sf660^\circ=1\cdot360^\circ+300^\circ\\\sf \alpha=300^\circ+k\cdot360^\circ, k\in\mathbb{Z}\\\tt b)~\sf1100^\circ=3\cdot360^\circ+20^\circ\\\sf\alpha=20^\circ+k\cdot360^\circ, k\in\mathbb{Z}\\\tt c)~\sf-480^\circ=-1\cdot360^\circ-120^\circ\\\sf 360^\circ-120^\circ=240^\circ\\\sf \alpha=240^\circ+k\cdot360^\circ,k\in\mathbb{Z}\\\tt d)~\sf-1290^\circ=-3\cdot360^\circ-210^\circ\\\sf 360^\circ-210^\circ=150^\circ\\\sf \alpha=150^\circ+k\cdot360^\circ,k\in\mathbb{Z}\end{array}}$