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IgorLugansk [536]
3 years ago
14

Tan100°= 1. tan80° 2. tan280° 3. -tan80°

Mathematics
1 answer:
lana [24]3 years ago
3 0

Answer:

  2.  tan 280°

  3.  -tan 80°

Step-by-step explanation:

Your calculator can help you figure this out.

__

The tangent function is periodic with a period of 180°, so tan(100°) will be equal to tan(100°+k·180°) for any integer k. Answer choices include k values of ±1, so two of them are correct:

  • tan(100°) = tan(100° -180°) = tan(-80°)
  • tan(100°) = tan(100° +180°) = tan(280°)
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