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for z = -3 + 5i, evaluate \(z \overline{z}.\)

Note: \(\overline{z}\) denotes the conjugate of z

 Mar 6, 2021
 #1
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if z = a + bi

conjugate z = a - bi

(a+bi)(a-bi) = a^2 +b^2

a = -3

b = 5. 

(-3)^2 + (5)^2 = 34. 

 

I hope this helped. :))

=^._.^=

 Mar 6, 2021

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