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10 cards from this deck
cscθ=1sinθ\csc \theta = \frac{1}{\sin \theta}cscθ=sinθ1
secθ=1cosθ\sec \theta = \frac{1}{\cos \theta}secθ=cosθ1
cotθ=1tanθ\cot \theta = \frac{1}{\tan \theta}cotθ=tanθ1
When sinθ=0\sin \theta = 0sinθ=0
When cosθ=0\cos \theta = 0cosθ=0
(−∞,−1]∪[1,∞)(-\infty, -1] \cup [1, \infty)(−∞,−1]∪[1,∞)
csc2θ=1+cot2θ\csc^2 \theta = 1 + \cot^2 \thetacsc2θ=1+cot2θ
sec2θ=1+tan2θ\sec^2 \theta = 1 + \tan^2 \thetasec2θ=1+tan2θ
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