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10 cards from this deck
Equations containing trig functions like sin, cos, or tan
Positive acute angle between 0°0°0° and 90°90°90°
Quadrants I and II
Quadrants I and IV
Quadrants I and III
360°360°360°
180°180°180°
θ=180°−reference angle\theta = 180° - \text{reference angle}θ=180°−reference angle
θ=180°+reference angle\theta = 180° + \text{reference angle}θ=180°+reference angle
Factoring and substitution
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