Perbandingan Trigonometri untuk Sudut-sudut Berelasi

Perbandingan Trigonometri  Sudut (90^o - α^o)

sin (90^o - α^o) = cos α^o

cot (90^o - α^o) = tan α^o

cos (90^o - α^o) = sin α^o

sec (90^o - α^o) = cosec α^o

tan (90^o - α^o) = cot α^o

cosec (90^o - α^o) = sec α^o

Perbandingan Trigonometri  Sudut (90^o + α^o)

sin (90^o + α^o) = cos α^o       

cot (90^o + α^o) = -tan α^o

cos (90^o + α^o) = -sin α^o      

sec (90^o + α^o) = -cosec α^o

tan (90^o + α^o) = -cot α^o     

cosec (90^o + α^o) = sec α^o

Perbandingan Trigonometri  Sudut (180^o - α^o)

sin (180^o - α^o) = sin α^o            

cot (180^o - α^o) = -cot α^o

cos (180^o - α^o) = -cos α^o        

sec (180^o - α^o) = -sec α^o

tan (180^o - α^o) = -tan α^o        

cosec (180^o - α^o) = cosec α^o

Perbandingan Trigonometri  Sudut (180^o + α^o)

sin (180^o + α^o) = -sin α^o       

cot (180^o + α^o) = cot α^o

cos (180^o + α^o) = -cos α^o                   

sec (180^o + α^o) = -sec α^o

tan (180^o + α^o) = tan α^o      

cosec (180^o + α^o) = -cosec α^o

Perbandingan Trigonometri  Sudut (270^o - α^o)

sin (270^o - α^o) = -cos α^o       

cot (270^o - α^o) = tan α^o

cos (270^o - α^o) = -sin α^o       

sec (270^o - α^o) = -cosec α^o

tan (270^o - α^o) = cot α^o        

cosec (270^o - α^o) = -sec α^o

Perbandingan Trigonometri  Sudut (270^o + α^o)

sin (270^o + α^o) = -cos α^o      

cot (270^o + α^o) = -tan α^o

cos (270^o + α^o) = sin α^o         

sec (270^o + α^o) = cosec α^o

tan (270^o + α^o) = -cot α^o      

cosec (270^o + α^o) = -sec α^o

Perbandingan Trigonometri  Sudut (-α^o)

sin (-α^o) = -sin α^o                         

cot (-α^o) = -cot α^o

cos (-α^o) = cos α^o                         

sec (-α^o) = sec α^o

tan (-α^o) = -tan α^o                      

cosec (-α^o) = -cosec α^o

Perbandingan Trigonometri  Sudut (n . 360^o - α^o)

sin (n . 360^o - α^o) = -sin α^o                    

cot (n . 360^o - α^o) = -cot α^o

cos (n . 360^o - α^o) = cos α^o                   

sec (n . 360^o - α^o) = sec α^o

tan (n . 360^o - α^o) = -tan α^o                 

cosec (n . 360^o - α^o) = -cosec α^o

Perbandingan Trigonometri  Sudut (n . 360^o + α^o)

sin (n . 360^o + α^o) = sin α^o                     

cot (n . 360^o + α^o) = cot α^o

cos (n . 360^o + α^o) = cos α^o                  

sec (n . 360^o + α^o) = sec α^o

tan (n . 360^o + α^o) = tan α^o                  

cosec (n . 360^o + α^o) = cosec α^o