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Can the number 6^n, n being a natural nu...

Can the number `6^n`, n being a natural number, end with the digit 5? Give reason.

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For what values of natural number n,4^(n) can end with the digit 6?

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Knowledge Check

  • If n is a natural number then sqrtn is

    A
    always a natural number
    B
    always an irrational number.
    C
    always a rational number
    D
    may be rational or irrational .

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