Page 24 - TRIGONOMETRI KELAS X

Perbandingan Trigonometri
Sudut Berelasi

2. Fungsi trigonometri sudut-sudut yang berelasi
a. sin(90 – α) = cos α cos(90 – α) = sin α o
o
o
o
o
o
o
tan(90 – α) = cot α cot(90 – α) = tan α o
sec(90 – α) = csc α csc(90 – α) = sec α o
o
o
o

o
0
o
b. sin(180 – α) = sin α sin(180 + α) = –sin α o
cos(180 – α) = –cos α cos(180 + α) = –cos α o
0
o
o
0
tan(180 – α) = –tan α tan(180 + α) = tan α
o
o
o

0
o
o
c. sin(360 – α) = –sin α sin(–α ) = –sin α o
cos(360 – α) = cos α cos(–α ) = cos α o
o
o
0
o
tan(360 – α) = –tan α tan(–α ) = –tan α o
0
o

Bernilai
”+” Sin All
Tan Cos

Adaptif