Page 37 - e-Modul Trigonometri - Ade Novita Sari Harahap

McKeague & Turner (2007) mendefinisikan bahwa: “If

 is an angle in standard position (Picture 7), and the point

(x, y) is any point on the terminal side of  other than the

origin, the the six trigonometric function of angle  are

defined as follows:

Fungsi Singkatan Definisi

Sinus  Sin 

Cosinus  Cos 

Tangen  Tan  ( ≠ 0)

Cotangen  Cot  ( ≠ 0)

Secan  Sec  ( ≠ 0)

Cosecan  Csc  ( ≠ 0)

Selanjutnya akan dipaparkan materi perbandingan

trigonometri pada segitiga siku-siku.

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