D daily302 New Member Joined Sep 1, 2007 Messages 13 Gender Undisclosed HSC 2008 Sep 6, 2007 #1 What is theta if "2sin-squared-theta=1"? (between 0 and 360). I know that theta is 45 degrees, but what else is it (135? 225?)
What is theta if "2sin-squared-theta=1"? (between 0 and 360). I know that theta is 45 degrees, but what else is it (135? 225?)
F Foxodi Member Joined Jul 3, 2007 Messages 308 Gender Male HSC 2008 Sep 6, 2007 #2 2sin^2 x = 1 0<x<360 sin^2 x = 1/2 sin x = +or-1 / root of 2 Positive or Negative, therefore all quadrants Q1 = 45 Q2 = 135 Q3 = 225 Q4 = 315 Therefore x = 45, 135, 225, 315
2sin^2 x = 1 0<x<360 sin^2 x = 1/2 sin x = +or-1 / root of 2 Positive or Negative, therefore all quadrants Q1 = 45 Q2 = 135 Q3 = 225 Q4 = 315 Therefore x = 45, 135, 225, 315
D daily302 New Member Joined Sep 1, 2007 Messages 13 Gender Undisclosed HSC 2008 Sep 6, 2007 #3 Thankyou very much!! That problem has bugged me for ages!!
