Menentukan Sudut dengan Perbandingan Trigonometri

Ditanyakan

5 macam nilai perbandingan trigonometri.

Penyelesaian

Kasus a

cos A = √7/4 = (1/4)√7
tan A = 3/√7 = (3/7)√7
csc A = 4/3
sec A = 4/√7 = (4/7)√7)
cot A = √7/3 = (1/3)√7

Kasus b

sin A = 15/17
cos A = 8/17
tan A = 15/8
csc A = 17/15
sec A = 17/8

Kasus c

sin θ = 5/13
cos θ = 12/13
tan θ = 5/12
csc θ = 13/5
cot θ = 12/5

Kasus d

sin α = 1/2
cos α = √3/2 = (1/2)√3
csc α = 2/1 = 2
sec α = 2/√3 = (2/3)√3
cot α = √3/1 = √3

Kasus e

cos α = 1/√2 = (1/2)√2
tan α = 1/1 = 1
csc α = √2/1 = √2
sec α = √2/1=√2
cot α = 1/1 = 1

Kasus f

sin β = 1/2
tan β =1/√3 = (1/3)√3
csc β = 2/1 = 2
sec β = 2/√3 = (2/3)√3
cot β = √3/1 = √3

(Sumber: Kompas.com/[Risya Fauziyyah] I Editor: [Rigel Raimarda])