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OpenStudy (dannyrod2000):
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OpenStudy (anonymous):
i=sqrt(-1) sqrt(-x^3)=x*sqrt(-x)=x*sqrt(x)*i
OpenStudy (dannyrod2000):
-125 square root times square root -1? @minoz
OpenStudy (anonymous):
sqrt(-125) can be written as sqrt(-5^3) . I think now the answer is simple replace in above formula x=5 :)
OpenStudy (dannyrod2000):
sqrt 125?
OpenStudy (dannyrod2000):
@minoz
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OpenStudy (anonymous):
125 can be written as 5*5*5 so sqrt(125) is 5*sqrt(5)
OpenStudy (dannyrod2000):
B?
OpenStudy (dannyrod2000):
@minoz
OpenStudy (anonymous):
yaa
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