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Goniometrické funkcie ostrého uhla.

Goniometrické funkcie ostrého uhla. 9.C. ZŠ-Kudlovská. Humenné. Goniometrické funkcie ostrého uhla. Kosínus. Kosínus uhla a je pomer dĺžky priľahlej odvesny a dĺžky prepony pravouhlého trojuholníka. A. a. prepona. c. odvesna. b. C. B. odvesna. a. Príklad. a=12 cm c=16 cm

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Goniometrické funkcie ostrého uhla.

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  1. Goniometrické funkcie ostrého uhla. 9.C ZŠ-Kudlovská Humenné

  2. Goniometrické funkcie ostrého uhla Kosínus

  3. Kosínus uhla a je pomer dĺžky priľahlej odvesny a dĺžky prepony pravouhlého trojuholníka.

  4. A a prepona c odvesna b . C B odvesna a

  5. Príklad. a=12 cm c=16 cm ––––––– cos b= cos b= cos b=0,75 b=41°24´

  6. Pripravila: Alexandra Džuganová V spolupráci s: Jaroslavou Varcholovou Špeciálne poďakovanie: p.uč.Balážovej

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