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in Cubes And Cube Roots by (58.8k points)

Find the value of (47)using the short-cut method.

1 Answer

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Best answer

By using the formula (a + b) 3= a3 + 3a2b + 3ab2 + b3

By considering the last unit digit position (highlighted) numbers we get,

(47)3 = 103823

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