2 cos (2x-3) = 1/2
tkhunny Moderator Staff member Joined Apr 12, 2005 Messages 11,339 Apr 26, 2006 #2 Without a calculator? Are you sure it isn't supposed to be \(\displaystyle cos^{2}(2x-3)\)?
tkhunny Moderator Staff member Joined Apr 12, 2005 Messages 11,339 Apr 27, 2006 #4 You didn't answer the "calculator" question.
