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प्रश्न
Find the square of 607
योग
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उत्तर
(607)2 = (600 + 7)2
= (600)2 + (7)2 + 2 (600) (7)
= 360000 + 49 + 1200 × 7
= 360000 + 49 + 8400
= 368449
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