SOLUTION: evaluate the expression. =sqrt (-49)

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Question 304608: evaluate the expression.
=sqrt (-49)
Answer by blwinbbbles(106) About Me  (Show Source):
You can put this solution on YOUR website!
sqrt (-49) is not a real number so you can say:
sqrt (-49) = sqrt(-1) * sqrt(49) the sqrt of (-1) = i
so: i * 7 = 7i
Does that help