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fe CJU? 9 रि0 51 कर. न! 02८80 -+ha 4te divisible ba &

Answer»

Suppose n is 3 which is oddthen according to the questionn^2-1= 9-1= 8which is divisible by 8another exampletake n = 5then 25-1= 2424/8= 3so it's proved

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