How do you evaluate sec 120 degrees?
1 Answer
May 7, 2015
sec 120 = = 1/(cos 120)
Trig table gives cos 120 = -1/2.
sec 120 = -2.
sec 120 = = 1/(cos 120)
Trig table gives cos 120 = -1/2.
sec 120 = -2.