.Sketch t=3pi/5 on the unit circle.

What is the reference number for t? I know the reference number is 2pi/5.

Find to the nearest hundredth: sin t? cos t?

-How do you find these?

... with a calculator

The terminal point determined by t is : ( , ) ?

I need help in solving this problem, and how you go about finding sin and cos.

Thank you!