Pythagorean Identities

Card Set Information

Author:
ChantelleVu
ID:
41852
Filename:
Pythagorean Identities
Updated:
2010-10-13 02:17:31
Tags:
Basic Trigonometry Identities
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Description:
Identities that can be derived from the sides of a triangle.
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  1. sin2A + cos2A =
    1
  2. sin2A - 1 =
    -cos2A
  3. 1 - cos2A =
    sin2A
  4. 1 - sin2A =
    cos2A
  5. cos2A - 1 =
    -sin2A
  6. tan2A + 1 =
    sec2A
  7. tan2A - sec2A =
    -1
  8. 1 - sec2A =
    -tan2A
  9. sec2A - 1 =
    tan2A
  10. sec2A - tan2A =
    1
  11. 1 + cot2A =
    csc2A
  12. 1 - csc2A =
    -cot2A
  13. cot2A - csc2A =
    -1
  14. csc2A - cot2A =
    1
  15. csc2A - 1 =
    cot2A
  16. What are the 3 basic pythagorean identities?
    • sin2A + cos2A = 1
    • tan2A + 1 = sec2A
    • 1 + cot2A = csc2A
  17. What are the simple relations?
    • sin + cos = 1
    • tan + 1 = sec
    • 1 + cot = csc

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