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Recall that i^2=- 1 and sqrt(- 1)=i.
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We can simplify the given expression by combining like terms. Recall the definition of the imaginary unit i. sqrt(-1)=i and -1=i^2Let's begin by rewriting the roots that have a negative radicand as imaginary numbers.
Split into factors
sqrt(a* b)=sqrt(a)*sqrt(b)
sqrt(- 1)= i
Calculate root
Now we can multiply the terms.
Multiply
i^2=- 1
a(- b)=- a * b