Math

Card Set Information

Author:
benmfox
ID:
100190
Filename:
Math
Updated:
2011-09-06 21:35:00
Tags:
Trig
Folders:

Description:
Trig
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  1. sin (-x)
    -sinx
  2. cos (-x)
    cosx
  3. tan (-x)
    -tanx
  4. csc (-x)
    -cscx
  5. sec (-x)
    secx
  6. cot (-x)
    -cotx
  7. 1+cot2x=
    csc2x
  8. 1+tan2x=
    sec2x
  9. sin2A=
    2sinAcosA
  10. cos2A=
    • cos2A-sin2A
    • or
    • 2cos2A-1
    • or
    • 1-2sin2A
  11. tan2A=
    2tanA/1-tan2A
  12. Area of triangle=
    1/2absinC
  13. Arithmetic means
    x+y/2
  14. geometric means
    +or- the square root of xy

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