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Trigonometric Identities

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  • sin60
    1/2 sqrt 3
  • cos 30
  • 1+cot^2 (theta)
  • 1+tan^2 (theta)
  • Explain us how this formulae comes.
  • 1
  • sec x
    1/cos x
  • cos45
  • cos0
  • modify cotx as sinx and cos x terms
  • Mention 3 formulae for cos2x
  • tan2x
  • tan0
  • tan x =
    sin x / cos x
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