Question 94

Evaluate: $$1299 \times 1299$$

Solution

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$$1299 \times 1299 = (1300-1) \times (1300 -1)$$

                              = $$1300^2 + 1 - 2 \times 1300$$

                              = 1690000 + 1 - 2600 = 1687401

Therefore, Option B is correct

                     

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