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Using identities, evaluate the following: 103x140 |
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Answer» (103)(105) ⇒(104+1)(104−1). We know, a 2 −b 2 =(a+b)(a−b). Then, (103)(105) =(104+1)(104−1) =(104) 2 −1 2 =10816−1 =10815. THEREFORE, the required answer is 10815. |
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