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12 September, 10:40

What is the y-value of tan (x) when x = 90°?

-1

0

1

does not exist

+4
Answers (1)
  1. 12 September, 14:38
    0
    Hello:

    does not exist bcause : tan (90°) = sin (90°) / cos (90°) = 1/0? (no real value)
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