Solve the equation, for a) 2cos(2x) - 1 < 0 Please and Thank you very much!
cookiez69 What a stupid name, Nat. Joined Sep 16, 2012 Messages 74 Gender Male HSC 2014 Jan 7, 2013 #1 Solve the equation, for a) 2cos(2x) - 1 < 0 Please and Thank you very much!
asianese Σ Joined Sep 20, 2010 Messages 2,219 Gender Undisclosed HSC 2012 Jan 7, 2013 #2 The first thing you want to do is to manipulate the 'x' on the LHS. So take the 1 across and then divide by two to get and you should be able to go from there. A graphical approach might be useful.
The first thing you want to do is to manipulate the 'x' on the LHS. So take the 1 across and then divide by two to get and you should be able to go from there. A graphical approach might be useful.
 < \frac{1}{2})
