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The problem:

Find the last digit of

[tex]

(1997)^{1997} - (1994)^{1994}

[/tex]

The Answer: 1 (one)

Will post a solution soon...I would like to know if there is a different way to do it.

Cheers

Vivek

Find the last digit of

[tex]

(1997)^{1997} - (1994)^{1994}

[/tex]

The Answer: 1 (one)

Will post a solution soon...I would like to know if there is a different way to do it.

Cheers

Vivek

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