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1. Trigonometry
Section 4
2. Sine(theta)
opposite/hypothenuse
3. Cosine(theta)
4. Tangent(theta)
5. Cosecant(theta)
hypothenuse/opposite
6. Secant(theta)
7. Cotangent(theta)
8. if t is any real number, what is cos t?
cos t = x
9. if t is any real number, what is sin t?
sin t = y
10. if t is any real number, what is tan t?
tan t = y/x, x cannot equal 0
11. if t is any real number, what is csc t?
csc t = 1/y, y cannot equal 0
12. if t is any real number, what is sec t?
sec t = 1/x, x cannot equal 0
13. if t is any real number, what is cot t?
cot t = x/y, y cannot equal 0
14. when P(x,y) are the points belonging to t, what are the corresponding trig functions on the unit circle?
P(x,y) = (cos t, sin t)
15. What is the relationship between cos t and cos (-t)?
• they are always equal to each other.
• cos t = cos (-t)
16. What is the relationship between sin t and sin (-t)?
• they are always equal to each other.
• sin t = sin (-t)
17. What is the relationship between sin t and sin (t + 2pi)?
• they are always equal to each other
• sin t = sin (t + 2pi)
18. What is the relationship between sin t and sin (t + pi)?
they are always opposite to each other
19. What is the relationship between tan t and tan (t + pi)?
• they are always equal to each other
• tan t = tan (t + pi)
20. What is the sum of (cos t)^2 + (sin t)^2?
(cos t)^2 + (sin t)^2 = 1
21. What are the radian values for 30, 45, and 60 degrees?
• 30 degrees = pi/6
• 45 degrees = pi/4
• 60 degrees = pi/3

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 Author: Anonymous ID: 73804 Filename: ezqfdu Updated: 2011-03-19 06:31:54 Tags: Trigonometry Folders: Description: Cards for my upcoming trigonometry exam Show Answers:

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