pre-calculus

Card Set Information

Author:
tigray
ID:
73561
Filename:
pre-calculus
Updated:
2011-03-17 18:24:36
Tags:
trigonometry
Folders:

Description:
basics
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  1. Tan ∏/4
    1
  2. Tan ∏/6
    1/√3
  3. Tan ∏/3
    √3
  4. Tan ∏/2
    undefined
  5. Tan 0/1
    0
  6. law of sine
    sinA/a = sinB/b = sinC/c
  7. law of cosine
    • C2=a2+b2-2abCosC
    • A2=b2+c2-2bcCosA
    • B2=a2+c2-2acCosB
  8. pythagorean identities
    • sin2X+cos2X=1
    • tan2X+1=sec2X
    • cot2X+1=csc2X

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