Solve the Given Equation $2 \cos ^ { 2 } \theta - \cos \theta - 1 = 0$

question 66

Short Answer

Solve the given equation. $2 \cos ^ { 2 } \theta - \cos \theta - 1 = 0$

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Definitions:

High Levels of Radon

Elevated concentrations of radon gas, which is a radioactive and invisible gas that can pose serious health risks, including lung cancer, when accumulated indoors.

Secondary Prevention

Efforts aimed at early disease detection, thereby increasing opportunities for interventions to prevent progression of the disease and emergence of symptoms.

Tertiary Prevention

Interventions designed to manage and reduce complications from disease, after it has already occurred.

Health Promotion

Activities and programs designed to improve health and prevent disease.