AB′= AB = AC2+BC2 = 22+22 = 22，
AE= 12AB=2，
∠∠B′AC =∠BAC = 45，
∴∠b′ab=90，
Pb+PE = B 'e = B 'A2+AE2 = (22) The minimum value of 2+(I praised it and stepped on it. What's your comment on this answer? Put away comments//high quality or satisfaction or special types or recommended answers dottimewindow.iperformance & window.iperformance.mark ('c _ best',+newdate); Lawyer recommendation service: If your problem has not been solved, please describe your problem in detail and provide free professional consultation through Baidu Law Professional Edition. _ 1 uevpeq { zoom: 1； Background color: # fff border: 0; margin-bottom: 10px； Fill: 30px 0 20px 42px Location: Relative. _ 1 uevpeq . EC- 184 1 { padding:20px 0 }。 _ 1 uevpeq . 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