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April 19, 2015

April 19, 2015

Posted by **helen** on Thursday, December 19, 2013 at 3:26pm.

-5+i/2i

- algebra -
**Damon**, Thursday, December 19, 2013 at 3:30pmI suspect you may mean

(-5 +i)/(2i)

be careful about what is numerator and what is denominator when typing.

If my guess is correct then multiply top and bottom by i

(-5 i + i*i) / (2i*i)

But

i * i = i^2 = -1

so

(-5 i - 1) /-2

which is

1/2 + (5/2)i

- algebra -
**helen**, Thursday, December 19, 2013 at 4:56pmThanks but I had figure it out

thanks again

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