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प्रश्न
Use the formula to find the value.
502 × 498
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उत्तर
It is known that, (a + b) (a − b) = a2 − b2.
502 × 498
= (500 + 2) × (500 − 2)
= (500)2 − (2)2
= 250000 − 4
= 2,49,996
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