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Divisibility by 3

For every pos...

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For every positive integer n,prove that (7^n)-(3^n) is divisible by 4.

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Similar questions

Q. For every positive integer

n

7^{n} - 3^{n}

is divisible by

4

.

Q. For every +ve integer 'n' prove that

7^{n} - 3^{n}

is divisible by

4

Q. For every positive integer

n

7^{n} - 3^{n}

is divisible by

4

.

Q. Prove that for every positive integer n,

1^{n} + 8^{n} - 3^{n} - 6^{n}

is divisible by 10.

Prove that n² - n is divisible by 2 for every positive integer n.

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Divisibility by 3

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