Labels:black | darkness OCR: b e a a b a b Þ a Va acd a b a b C d e f : a b X a X X a a X X a Elfè X (a+ib)2 =a2 + 2aib+ (ib)2 = a2 - b2 + 2iab ÈèÈ|A|yè =Jy(x).Ay (x) dx 1/2 p 1/2p xsin(x)dx =- xcos(x) ["- 1/2P - cos(x)dx 0 0 =0 = sin(x) /2p 0 =1 |x//= VEx,xe Text in Corpus , and Trinity MediumItalic