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Lodestar · 07-05-2008, 02:39 PM

Please find below a simple expln.,

(2^20-2^19) = (2^19)

we can write the above expression as:

-> ((2^19)*2-2^19)
-> 2^19*(2-1) (taking 2^19 common)
-> 2^19

Hence proved.

07-05-2008, 02:39 PM	#3 (permalink)
Lodestar Trying to make mom and pop proud Join Date: Mar 2008 Posts: 6	Please find below a simple expln., (2^20-2^19) = (2^19) we can write the above expression as: -> ((2^19)2-2^19) -> 2^19(2-1) (taking 2^19 common) -> 2^19 Hence proved.