Posted by Amirul Thaqif on Saturday, February 2, 2013 at 10:54am.
cos^2 theta  sin^2 theta = 1

math  Steve, Saturday, February 2, 2013 at 5:22pm
only if theta = 0 or pi
since cos^2 θ  sin^2 θ = cos2θ
Posted by Amirul Thaqif on Saturday, February 2, 2013 at 10:54am.
cos^2 theta  sin^2 theta = 1
only if theta = 0 or pi
since cos^2 θ  sin^2 θ = cos2θ