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    				| 1. | सर्वसमिका का प्रयोग करके निम्न के मान ज्ञात कीजिए। (1) 103 × 107(ii) 95 × 96(iii) 104 × 96 | 
| Answer» (i) 103 × 107 = (100 + 3) × (100 + 7) = (100)2 + (3 + 7) × 100 + 3 × 7 =10000 + 1000 + 21 = 11021 (ii) 95 × 96 = (100 – 5) × (100 – 4) = (100)2 (5 + 4) × 100 + 5 × 4 = 10000 – 900 + 20 = 9120 (iii) 104 × 96 = (100 + 4) × (100 – 4) = (100)2 – (4)2 = 10000 – 16 = 9984 | |