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Question
Find the cube root of the following natural number 343 .
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Solution
Cube root using units digit:
Let us consider 343.
The unit digit is 3; therefore, the unit digit in the cube root of 343 is 7.
There is no number left after striking out the units, tens and hundreds digits of the given number; therefore, the cube root of 343 is 7.
Hence, \[\sqrt[3]{343} = 7\] .
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