How do you use a calculator to evaluate #cos^-1 (-0.6)# in both radians and degree?

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Answer 1 · 2017-03-18T18:35:14

#126°52'11''# and #2.2143# radians

enter#0.6# change sign on calculator

#-0.6# on the calculator screen

now press #cos^-1#(arc sine)

#=126.68698976°#decimal degrees

#=126°52'11''#

#126.68698976 xx pi/180#

#126.68698976 xx 0.017453292#

#2.2143#radians