Find All Solutions Of $\sin x ( 2 \cos x + 1 ) = 0$

question 9

Essay

Find all solutions of $\sin x ( 2 \cos x + 1 ) = 0$ .

---

Definitions:

Arab Countries

Nations in the Arab League, which primarily include countries in the Middle East and North Africa that share linguistic, cultural, and political traditions.

Managers

Individuals responsible for controlling or administering an organization or group of staff, making decisions, and implementing policies.

Voice Quality

The characteristics of a person's voice, including tone, pitch, and volume, which can affect communication and perceptions.

Personality Judgment

The process of evaluating or making assumptions about someone's character based on observable traits or behaviors.