BigDawgsx2 BigDawgsx2
  • 25-10-2019
  • Mathematics
contestada

If tan x=−1, and 90° < x < 180°, what is cos⁡(x−30°)?

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Аноним Аноним
  • 25-10-2019

Answer:

√2/2

Step-by-step explanation:

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