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Mathematics 6 Online
OpenStudy (anonymous):

conjugate of 84-63i

Parth (parthkohli):

Do you know what conjugate means?

OpenStudy (unklerhaukus):

\[z=a+bi\]the complex conjugate is \[\bar z=a-bi\]

OpenStudy (anonymous):

so you pretty much just change the sign?

OpenStudy (unklerhaukus):

thats all there is to it

OpenStudy (anonymous):

wow, thanks! :)

OpenStudy (unklerhaukus):

Parth, what does conjugate mean, in a more general sense

Parth (parthkohli):

Conjugate is the negation of the second term in a binomial.

OpenStudy (anonymous):

um, how about the muliplicative inverse of 1/3+i

Parth (parthkohli):

In a z-plane, they form the same angle from the origin.

Parth (parthkohli):

@gabbi2013 Flip the fraction

OpenStudy (anonymous):

so 3+i/1???

Parth (parthkohli):

Yeah, or just 3 + i.

Parth (parthkohli):

Unless your original question was\[\large \rm {1 \over 3}+i\]

OpenStudy (anonymous):

it was but the answer you gave me was correct. now i need to form in a+bi (6-2i)^2

OpenStudy (anonymous):

help? please.

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