show that there is no value of n for which (2n * 5n) ends in 5
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2n*5n=10 n2
any no. multiplied by 10 always ends in 0
thus,for any value of n,n2 multiplied by 10 will also end in 0.
As a result, the value of 10 n2 will never end with5
any no. multiplied by 10 always ends in 0
thus,for any value of n,n2 multiplied by 10 will also end in 0.
As a result, the value of 10 n2 will never end with5
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