Page 44 - E - MODUL TRIGONOMETRI - ADE NOVITA SARI HARAHAP

McKeague & Turner (2007) mendefinisikan bahwa: “If

 is an angle in standard position (Picture 4), 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:

Function Abbreviation Definition

The sine of  Sin 

The cosine of  Cos 

The tangent of  Tan  ( ≠ 0)

The cotangent of  Cot  ( ≠ 0)

The secant of  Sec  ( ≠ 0)

The cosecant of  Csc  ( ≠ 0)

Selanjutnya akan dipaparkan materi perbandingan

trigonometri pada segitiga siku-siku. Untuk itu, perhatikan

gambar berikut ini

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