The radical using the imaginary unit, i -30 will be +- ✓30 i
It should be noted that from the information given, the radical expression that is given is +-✓30.
This will be:
+-✓30 = +-✓30 ✓1
= ✓30i
= +- ✓30 i
Therefore, the radical using the imaginary unit, i -30 will be +- ✓30 i
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