2.
Prove that if a number is tripled, then its cube is 27 times the cube of the given
number.
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Let a number be x.
Cube of the number = x³......(i)
If the number I tripled...
Number = 3x
Cube of the number = (3x)³ = 27x³......(ii)
From (i) and (ii),
Cube of the new number is 27 times the initial number.
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