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Which of the following is/are true? (i) 43^3 - 1 is divisible by 11 (ii) 56^2 + 1 is divisible by19 (iii) 50^2 - 1 is divisible by 17 (iv) (729)^5 - 729 is divisible by 5 |
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Answer» (i) and (II) |
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