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Mathematics 14 Online
OpenStudy (anonymous):

2 -- 7i

Nnesha (nnesha):

multiply top and bottom by there conjugate

Nnesha (nnesha):

what is conjugate of 7i ???

OpenStudy (anonymous):

is it just 7i

Nnesha (nnesha):

nope 7i is positive conjugate of 7i should be opposite so its ??

OpenStudy (anonymous):

-7i

Nnesha (nnesha):

yes right now multiply|dw:1423088114906:dw| multiply numerator by numerator and denominator by denominator

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