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प्रश्न
Cube of `-1/2` is ______.
विकल्प
`1/8`
`1/16`
`-1/8`
`-1/16`
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उत्तर
Cube of `-1/2` is `underlinebb(-1/8)`.
Explanation:
Cube of a is (a)3 = a × a × a
Similarly, `(-1/2)^3 = ((-1)/2) xx ((-1)/2) xx ((-1)/2) = (-1/8)` ...[For (– a)m, if m is odd, then (– a)m is negative]
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