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quickstudent:
What is the y-value of tan(x) when x = 90°? -1 0 1 does not exist
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Elsa213:
`tanθ = sinθ/cosθ cos(90°) = 0 Division by zero is undefined.` Source: https://answers.yahoo.com/question/index?qid=20150309081909AAvA2ne
quickstudent:
So D. does not exist. :)
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