Show that 9 n cannot end with 2 for any natural number n.

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Harsh Patodia · Answer

9 n =3 2n = (2+1) 2n Using binomial expansion (a+b) n = n C 0 a n + n C 1 a n-1 b 1 . . . . . + n C n bn Above will be ending in odd number or you can show by taking some values of n and see the pattern.

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Show that 9 n cannot end with 2 for any natural number n.

Show that 9ⁿ cannot end with 2 for any natural number n.

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Show that 9 n cannot end with 2 for any natural number n.

Show that 9n cannot end with 2 for any natural number n.

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Show that 9ⁿ cannot end with 2 for any natural number n.