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A natural number n is called a perfect cube if it can be expressed as:
Am² for some natural number m
Bm³ for some natural number m
Cm·(m+1) for some natural m
D2m for some natural m
Answer & Solution
Correct answer: B. m³ for some natural number m
A perfect cube is a natural number that equals m × m × m = m³ for some natural number m. So 1, 8, 27, 64, … are perfect cubes.
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