yogi_From Entries In List1 And List2 Pull Duplicates And Non Duplicated Entries

                      Google Spreadsheet   Post  #1747
Yogi Anand, D.Eng, P.E.      ANAND Enterprises LLC -- Rochester Hills MI     www.energyefficientbuild.com.   Sep-01-2014
post by David 215215:
(https://productforums.google.com/forum/?utm_medium=email&utm_source=footer#!msg/docs/k2ljxV_Aans/BSZVPs6ivDYJ)
finding duplicates in columns

hello

i have 2 columns, column A and column B

I want to find the duplicates between these columns and delete both 

thank you.

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