This math topic focuses on trigonometry, specifically the determination of trigonometric ratios and their signs for given angles measured in radians. It includes identifying whether specific trigonometric functions (sine, cosine, or tangent) are positive or negative at different angles, based on their places in the quadrants of the unit circle. This is an introductory skill set that underlies deeper understanding of trigonometric identities and their applications. The problems help in reinforcing knowledge of the unit circle and the sign of trigonometric ratios in different quadrants.
Work on practice problems directly here, or download the printable pdf worksheet to practice offline.
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