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Mathematics 11 Online
OpenStudy (anonymous):

what is the multiplicative inverse of 2-i

OpenStudy (anonymous):

i assume i is imaginary???

OpenStudy (anonymous):

(2/5) + (i/5)

OpenStudy (anonymous):

why over 5?

OpenStudy (anonymous):

i just simplified...

OpenStudy (anonymous):

where do you get 5 from its 2-i?

OpenStudy (anonymous):

is i the imaginary unit? i assumed that it was.

OpenStudy (anonymous):

yeah it is.

OpenStudy (anonymous):

ok, can you get this far (2+i)/((2+i)(2-i))?

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