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How do you graph, identify the domain, range, and asymptotes for y=-2csc2x-1?

User Igor Guzak
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The domain is all real numbers except kπ, where k is an integer.
The range is (-∞, -1] ∪ [1, ∞)
Vertical asymtote is kπ, where k is an integer.
User Juanmf
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