googoomylizard
20.09.2020 •
Mathematics
In which quadrant(s) are tan(x) and sin(x) both negative?
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Ответ:
We have AC. We need to calculate AB
ABC is a right triangle. Therefore, AC² = AB²+BC²
82² = AB ² + 80² => AB² = 82² - 80²
AB = 18
Sin C = 18/82 = 9/41
Good luck