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If n is a natural number the 92n - 42n is always divisible by1. 132. both 5 and 133. 5 4. none of the above |
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Answer» Correct option is (2) both 5 and 13 92n - 42n is of form an - bn (where n is even) Therefore an - bn is always divisible by (a - b) & (a + b) So, it is divisible by (9 + 4) and (9 - 4) i.e., 5 and 13 |
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