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10 questions from this quiz
1sinθ\frac{1}{\sin \theta}sinθ1
cosθsinθ\frac{\cos \theta}{\sin \theta}sinθcosθ
90°,270°90°, 270°90°,270°
When sinθ=0\sin \theta = 0sinθ=0
(−∞,−1]∪[1,∞)(-\infty, -1] \cup [1, \infty)(−∞,−1]∪[1,∞)
It decreases
sec2θ=1+tan2θ\sec^2 \theta = 1 + \tan^2 \thetasec2θ=1+tan2θ
csc2θ=1+cot2θ\csc^2 \theta = 1 + \cot^2 \thetacsc2θ=1+cot2θ
111
109\frac{10}{9}910
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