Nyatakan dalam perbandingan trigonometri sudut di kuadran I a. sin (-35 derajat) b. cos 215 derajat c. tan 175 derajat d .sec 670 derajat e. cosec 970 derajat f. cotan 320 derajat
Takamori37
A.) sin(-35°) = -sin 35° Sifat fungsi ganjil. b.) cos(215)° = cos(270-55) cos(215)° = -cos(55)° Sifat kuadran III. c.) tan(175°) = tan(180-5)° tan(175°) = -tan 5° Sifat kuadran II d.) sec(670°) = sec(720-50)° Sifat siklis. sec(670°) = sec(-50)° sec(670°) = sec 50° Fungsi genap. e.) csc(970)° = csc(720+250)° csc(970)° = csc(250°) csc(970)° = csc(180+70)° csc(970)° = -csc 70° Sifat kuadran III f.) cot(320°) = cot(360-40)° cot(320°) = cot(-40°) cot(320°) = -cot 40° Sifat gungsi ganjil.
sin(-35°) = -sin 35°
Sifat fungsi ganjil.
b.)
cos(215)° = cos(270-55)
cos(215)° = -cos(55)°
Sifat kuadran III.
c.)
tan(175°) = tan(180-5)°
tan(175°) = -tan 5°
Sifat kuadran II
d.)
sec(670°) = sec(720-50)°
Sifat siklis.
sec(670°) = sec(-50)°
sec(670°) = sec 50°
Fungsi genap.
e.)
csc(970)° = csc(720+250)°
csc(970)° = csc(250°)
csc(970)° = csc(180+70)°
csc(970)° = -csc 70°
Sifat kuadran III
f.)
cot(320°) = cot(360-40)°
cot(320°) = cot(-40°)
cot(320°) = -cot 40°
Sifat gungsi ganjil.