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3. square-square root and cube-cube root
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Q81 of 142 Page 88

State whether the statements are true (T) or false (F).

999 is a perfect cube.

Given: 999

Factors of 999 = 3 ×3 × 3 × 37


= 33×37


As we see, 999 is not a perfect cube.


Hence, the given statement is false.


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All 142 →
79

State whether the statements are true (T) or false (F).

Cube of an even number is even.

80

State whether the statements are true (T) or false (F).

Cube of an odd number is odd.

82

State whether the statements are true (T) or false (F).

363×81 is a perfect cube.

83

State whether the statements are true (T) or false (F).

Cube roots of 8 are + 2 and -2.

Questions · 142
3. square-square root and cube-cube root
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