in expression 4+√-8 how to take out minus sign?
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Answer:
minus sign cannot be taken out.
Step-by-step explanation:
this can only be written in the form of imaginary numbers (i = √-1)
4+√-8 => 4+(√8 × √-1) => 4+2√(2) i
as √8 = √(4×2) = 2√2