Pre-Calc Formulas

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Author:
DvsM
ID:
18878
Filename:
Pre-Calc Formulas
Updated:
2010-05-11 19:01:35
Tags:
Pre Calcus Trig formulas
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Description:
Pre-Calcus Trig Formulas
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  1. cos(A-B)
    cosAcosB+sinAsinB
  2. cos(A+B)
    cosAcosB-sinAsinB
  3. sin(A-B)
    sinAcosB-cosAsinB
  4. sin(A+B)
    sinAcosB+cosAsinB
  5. tan(A-B)
    • tanA-tanB
    • 1+tanAtanB
  6. tan(A+B)
    • tanA+tanB
    • 1-tanAtanB
  7. sin2x
    2sinxcosx
  8. cos2x
    cos2x-sin2x
  9. cos2x
    1-2sin2x
  10. cos2x
    2cos2x-1
  11. tan2x
    • 2tanx
    • 1-tan2x
  12. sin(1/2)x
    • `/1-cosx
    • `/2
  13. cos(1/2)x
    • `/1+cosx
    • `/2
  14. tan(1/2)x
    • `/1-cosx
    • `/1+cosx
  15. tan(1/2)x
    • sinx
    • 1+cosx
  16. tan(1/2)x
    • 1-cosx
    • sinx

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