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diff --git a/3827/CH2/EX2.8/EX2_8.sce b/3827/CH2/EX2.8/EX2_8.sce
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+//EX2_8 To find complement of (AB' + C)D' + E
+
+//clears the screen
+clc
+
+//clears already existing variables
+clear
+
+//By using 2.12 i.e. (X + Y)' = X'Y'
+disp('((AB'' + C)D'' + E)'' = [(AB'' + C)D'']''E''')
+//By using 2.13 i.e. (XY)' = X' + Y'
+disp('= [(AB'' + C) + D]E''')
+//Using 2.12
+disp('= [(AB'')'' C'' + D]E''')
+//Using 2.13
+disp('= [(A'' + B) C'' + D]E''')