Kotne funkcije poljubnih kotov Flashcards

1
Q

Radian

A
  • 1 rad = 180°/π
  • π = 180°
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2
Q

Kotne funkcije komplementarnih kotov

A
  • sin(π/2 - x) = cos x
  • cos(π/2 - x) = sin X
  • tan(π/2 - x) = cot X
  • cot(π/2 - x) = tan x
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3
Q

Periodičnost

A
  • sinus in kosinus sta periodični funkciji z osnovno periodo 2π
  • tanges in kotangens sta periodični funkciji z osnovno periodo π
  • sin(x + 2kπ) = sinx
  • cos(x + 2kπ) = cosx
  • tan(x + kπ) = tanx
  • cot(x + kπ) = cotx, k element Z
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4
Q

Kotne funkcije nasprotnih kotov

A
  • sinus, trans, kotangens so lihe funkcije
  • kosinus je soda funkcija
  • sin(-x) = -sinx
  • tan(-x) = -tanx
  • cot(-x) = - cotx
  • cos(-x) = cosx
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