Which of the following numbers will have 6 at their unit's place : (i) 26^2 (ii) 49^2 (iii) 34^2 (iv) 43^2 (v) 244^2

Mathematics

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According to the property of square number, if a number has 4 or 6 in its unit's place, then square of this number always has 6 at its unit place.

Hence, (i) 26², (iii) 34² and (v) 244² will have 6 at their unit's place.

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