Dominic bought a new alarm clock that was $24.75. The store was a having a sale for 10% off plus Dominic had a coupon for $2.50
1 answer:
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Answer:
The principal square root of -4 is 2i.
Step-by-step explanation:
= 2i
We have the following steps to get the answer:
Applying radical rule
We get
As per imaginary rule we know that
=
Now
Hence, the answer is 2i.