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TRIGONOMETRI

TRIGONOMETRI.

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TRIGONOMETRI

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  1. TRIGONOMETRI BERASAL DARI KATA TRI YANG BERKEPANJANGAN TRRIANGEL(SEGITIGA) DAN GONOMETRI YANG BERARTI UKURAN, SEHINGGA DAPAT DISIMPULKAN BAHWA TERNYATA TRIGONOMETRI ADALAH UKURAN-UKURAN PADA SEGITIGA, YANG BERKAITAN DENGAN SUDUT-SUDUT DAN SISI PADA SEGITIGA YANG NANTINYA AKAN BERKEMBANGDALAM PENGUKURAN LUAS DAN KELILING SEGITIGA

  2. PEMBAHASAN TRIGONOMETRI BAHASAN DASAR DALAM TRIGONOMETRI : SIN α COS α TANGEN α COSECAN α SECAN α COTANGEN α

  3. SIN α NILAI SINUS SUATU SUDUT DIDEFINISIKAN : sisididepansuduttersebut / sisi miring segitiga Perhatikangambar! Makasesuaidefinisi: Sin α= sisidepansudutα/ sisi miring segitiga = b / a a b α c KEMBALI

  4. cosα NILAI COSINUS SUATU SUDUT DIDEFINISIKAN : sisidisampingsuduttersebut / sisi miring segitiga Perhatikangambar! Makasesuaidefinisi: Cos α = sisidisampingsudutα / sisi miring segitiga = c / a a b α c KEMBALI

  5. tangenα NILAI TANGEN SUATU SUDUT DIDEFINISIKAN : sisididepansuduttersebut / sisidisampingsuduttersebut Perhatikangambar! Makasesuaidefinisi: Tan α = sisididepansudutα / sisidisampingsudutα = b / c a b α c KEMBALI

  6. cosecanα NILAI COSECAN SUATU SUDUT DIDEFINISIKAN : 1 / nilai sinus suduttersebut Perhatikangambar! Makasesuaidefinisi: Cosec α = 1 / sin α = 1 / (b/a) = 1 . (a/b) = a/b a b α c KEMBALI

  7. secanα NILAI SECAN SUATU SUDUT DIDEFINISIKAN : 1 / nilaicosinussuduttersebut Perhatikangambar! Makasesuaidefinisi: Secanα = 1 / cosα = 1 / (c/a) = 1 . (a/c) = a/c a b α c KEMBALI

  8. cotangenα NILAI COTANGEN SUATU SUDUT DIDEFINISIKAN : 1 / nilaitangensuduttersebut Perhatikangambar! Makasesuaidefinisi: Cotgα = 1 / tan α = 1 / (b/c) = 1 . (c/b) = c/b a b α c KEMBALI

  9. NilaiPerbandinganTrigonometriuntukSudutKhusus

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