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goblinko [34]
3 years ago
14

Determined the quadrant for an angle with the following characteristics: cotθ>0 and cscθ>0.

Mathematics
2 answers:
oee [108]3 years ago
6 0
\csc\theta=\dfrac1{\sin\theta}>0\implies\sin\theta>0

This happens whenever the terminal point of \theta lies in either the first or second quadrants.

Meanwhile,

\cot\theta=\dfrac1{\tan\theta}=\dfrac{\cos\theta}{\sin\theta}>0\implies\cos\theta>0

since you already know sine is positive. Cosine is positive when the angle lies in the first or fourth quadrant.

Sine and cosine are both positive only when \theta is the first quadrant, which means this angle's terminal point lies in the first quadrant (A).
Volgvan3 years ago
5 0

Answer:

1. B (tanX=x/y)

2. B (cscZ=x/z)

3. C (12/13)

4. B. (68.90)

5. B (39.81)

6. C (44)

7. B (2.9 cm)

8. B (523.8 ft)

9. A (pi radians)

10. D (5pi/6 radians)

11. B (70)

12. A (100.27)

13. B (3pi/4)

14. A (3pi/4)

15. C (sqrt3/2)

16. C (sqrt2/2)

17. D (tan pi/2)

18. D (sqrt 2/2)

19. B (cos52)

20.A (Quadrant I)

21. B (pi/3)

22. D (tan0=3sqrt7/3)

23. Written

Step-by-step explanation:

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