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Goniometrické funkce. Funkce cosinus y = cos α Df < 0⁰ ; 360⁰ > Hf <-1 ; 1> - grafem je cosinusoida = x- ová souřadnice průsečíku ramene úhlu s jednotkovou kružnicí. Př.: Podle tabulek urči hodnoty fce cos.

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Funkce cosinus

y = cosα

Df < 0⁰ ; 360⁰ >

Hf <-1 ; 1>

- grafem je cosinusoida

= x- ová souřadnice průsečíku ramene úhlu s jednotkovou

kružnicí


Př.: Podle tabulek urči hodnoty fce cos.

α = 45⁰ 20ʹ

β = 14⁰ 30ʹ

γ = 85⁰ 10ʹ

δ = 50⁰ 40ʹ

α = 4⁰ 10ʹ

β = 90⁰

γ = 66⁰ 10ʹ

δ = 10⁰ 50ʹ

α = 39⁰ 20ʹ

β = 18⁰ 30ʹ

γ = 8⁰ 40ʹ

δ = 55⁰ 10ʹ


Př.: Pomocí tabulek urči velikost úhlu, je-li dáno:

cos⁡α = 0,5

cos⁡α = 0,2079

cos⁡α = 0,9696

cos⁡α = 0,6088

cos⁡α = 0,9205

cos⁡α = 0,5025

cos⁡α = 1

cos⁡α = 0,2051

cos⁡α = 0,8936

cos⁡α = 0,5544

cos⁡α = 0,4752

cos⁡α = 0,5831



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  • Autorem materiálu a všech jeho částí,

  • není-li uvedeno jinak, je Mgr. Petr Kotrch.


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