PENGERTIAN
Pada segitiga siku-siku berlaku dalil phitagoras.
Pada segitiga siku-siku berlaku dalil phitagoras.
 | Sin a = a/c Cos a = b/c tg a = a/b | cosec a = c/a sec a = c/b ctg a = b/a |
HUBUNGAN-HUBUNGAN
| ctg a = 1/tg a sec a = 1/cos a cosec a = 1/sin a | tg a = sin a / cos a sin2 a + cos2 a = 1 tg2 a + 1 = sec2 a |
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