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Mathematics 19 Online
OpenStudy (anonymous):

Complex functions help please! Picture attached Please please help

OpenStudy (anonymous):

I have no idea what these mean. Can someone please help explain

OpenStudy (anonymous):

This may help: http://mathworld.wolfram.com/ComplexConjugate.html

OpenStudy (phi):

I would start by letting z1= a1+ i b1 and z2= a2+ i b2 and the definition of complex conjugate conj( a+ bi) = a- bi and conj(a-bi) = a + bi

OpenStudy (phi):

for (d), I would use | z |^2 is z*conj(z)

OpenStudy (phi):

the line over the z means complex conjugate

OpenStudy (phi):

try (a) with z1= a1+ i b1 and z2= a2+ i b2 z1+z2 = (a1+a2) + i (b1+b2) the complex conjugate of that is (a1+a2) - i (b1+b2) now do the right side conj(z1) + conj(z2)

OpenStudy (anonymous):

Thanks I got a and b now! I don't understand c though at all

OpenStudy (anonymous):

Re means real part and Im means imaginary part. For example, let z = a+bi, Re(z) = a and Im(z) = b.

OpenStudy (anonymous):

Is this clear?

OpenStudy (anonymous):

Yep!Just did C and I think I got D as well! Thank you guys!

OpenStudy (anonymous):

Glad we helped.

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