sin 129 degrees=

Asked by AnneS2 12 years ago 3/22/2013 5:11 AM

Last updated by anonymous 12 years ago 3/23/2013 2:42 PM

Answered by CherieS 12 years ago 3/23/2013 2:42 PM

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