Chalino Sanchez
1 =   Culiacan, Sinaloa, Mexico
 
 
1 = cos2 (x) + sin2 (x) = (eix + e-i1 = cos2 (x) + sin2 (x) = (eix + e-ix )2 /4 + sin2 (x) = (e2ix + e-2ix )/4 + e2ln(sin(x)) + 1/2x )2 /4 + sin2 (x) = (e2ix + e-2ix )/4 + e2ln(sin(x)) + 1/2