5 Questions
Is the reference angle for 160º 20º?
True
In Quadrant II, the x direction is negative, and cosine and tangent become negative.
True
In Quadrant III, sine and cosine are negative.
False
In Quadrant IV, sine and tangent are negative.
True
The graph shows the mnemonic 'ASTC' to remember when Sine, Cosine, and Tangent are positive.
True
Learn about the three main functions in trigonometry: Sine, Cosine, and Tangent, and how to calculate them for different angles in the four quadrants using Cartesian Coordinates.
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