2005 raise to power 2006 X 2006 raise to power 2007 X 2007 raise to power 2008 X 2008 raise to power 2009
in the following multiplication problem what is the digit at the unit place in the final product
ans ….. 0
plz explain…urgent
hey..it’s very simple..first write..2005 raise to power 2005 X 2005 and also..2006 raise to power 2006 X 2006..ans so on.. then..2005 raise to power 2005 will always gve 5 at unit place X 2005 also gve 5 at unit place..then 2006 raise to power 2006 will always gve 6 at unit place X 2006 also gve 6 at unit place..then 5 X 6 =0 then whatever be the digit at unit place of other expression..it always gve 0 at unit place..
The digits at unit place will be 5*6 that will yield 0 at the unit place.
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amanpreet055 said – Sat, 25 Jul 2009 18:34:31 -0000 ( Flag Edit Link )
thanks buddy
ankit21 said – Sun, 26 Jul 2009 06:54:42 -0000 ( Flag Edit Link )
my..pleasure…