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Find the cube of
(i) $-11$.
(ii) $-12$
(iii) $-21$.
To find:
We have to find the cube of the given numbers.
Solution:
(i) $(-11)^3=-11\times-11\times-11$
$=-(11\times11\times11)$
$=-1331$
(ii) $(-12)^3=-12\times-12\times-12$
$=-(12\times12\times12)$
$=-1728$
(iii) $(-21)^3=-21\times-21\times-21$
$=-(21\times21\times21)$
$=-9261$
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