Math
sin 129 degrees=
![](https://d22o6al7s0pvzr.cloudfront.net/images/bookrags/qa/avatars/.defaults/unknown.png)
Asked by
AnneS2
Last updated by
anonymous
sin 129 degrees=Cos[(13 Pi)/60]
=0.78
Using a calculator-make sure it is set to deg. Look at the stop of the screen and it should say DEG and not RAD
input 129
Push "sin"
=0.78