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106 × 106 + 94 × 94 = A, find the value of A?1. 200722. 200323. 230324. 21032 |
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Answer» Correct Answer - Option 1 : 20072 Concept used: (a + b)2 = a2 + b2 + 2ab Calculation: (106 + 94)2 = 1062 + 942 + 2 × 106 × 94 ⇒ 2002 = 1062 + 942 + 19928 ⇒ 40000 – 19928 = 1062 + 942 ⇒ 20072 = 1062 + 942 ∴ The value of A is 20072 |
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