finding equivalent expression from sin to cos

[jupiter000]

What expression of the form cos (x+a) or cos(x-a) is equivalent to sin (6/pi -x)?

 

[Dr.Peterson]

What expression of the form cos (x+a) or cos(x-a) is equivalent to sin (6/pi -x)?

Do you know the "co-function identities", such as [imath]\sin(\theta)=\cos\left(\frac{\pi}{2}-\theta\right)[/imath]?

 

[Dumbass]

What expression of the form cos (x+a) or cos(x-a) is equivalent to sin (6/pi -x)?

Is your sin expression written like this?

 

[Dumbass]

View attachment 30662
Is your sin expression written like this?

1) apply the identity to your case
2) use the remarkable advice dr.peterson gave you earlier.