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Cube of (-1)/2i s 1/8 (b) 1/(16) ...

Cube of `(-1)/2i s` `1/8` (b) `1/(16)` (c) `-1/8` (d) `(-1)/(16)`

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Verified by Experts

The cube of `((-1)/2)` is `((-1)/2)^3=-1/8`.
Hence, option (c) is the correct answer.
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