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10 cards from this deck
sinθ=12\sin\theta = \frac{1}{2}sinθ=21
2sin2θ−sinθ−1=02\sin^2\theta - \sin\theta - 1 = 02sin2θ−sinθ−1=0
sin2θ+cos2θ=1\sin^2\theta + \cos^2\theta = 1sin2θ+cos2θ=1
tanθ=sinθcosθ\tan\theta = \frac{\sin\theta}{\cos\theta}tanθ=cosθsinθ
sin(2θ)=2sinθcosθ\sin(2\theta) = 2\sin\theta\cos\thetasin(2θ)=2sinθcosθ
θ=θ0+360°n\theta = \theta_0 + 360°nθ=θ0+360°n (also check 180°−θ0180° - \theta_0180°−θ0)
θ=θ0+180°n\theta = \theta_0 + 180°nθ=θ0+180°n (or θ0+πn\theta_0 + \pi nθ0+πn)
0°0°0° to 360°360°360° or 000 to 2π2\pi2π radians
Angle more complicated than just θ\thetaθ
Modify domain to find limits for compound angle
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