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soldier1979 [14.2K]
3 years ago
13

Pls help

Mathematics
2 answers:
Mekhanik [1.2K]3 years ago
8 0

Answer:

34

Step-by-step explanation:

Here z = -3 + 5i and the complement of this is

        z-comp = -3 - 5i.

Multiplying these two quantities together, we get

9 -25i²   =    9 + 25  =  34

bonufazy [111]3 years ago
7 0

Answer:

\underline{ \boxed{z\overline{z}  = 34}}

Step-by-step explanation:

if \: z = -3 + 5i \\then \:  \overline{z} =  - (3  +  5i) \\ hence \: z\overline{z}  = (-3 + 5i)( - 3   -  5i)  \\ z\overline{z}  = 9 + 15i - 15i -   {(5i)}^{2}  \\ z\overline{z}  = 9  - (25 ){i}^{2}  \\ z\overline{z}  = 9 - (25)( - 1) \\ z\overline{z}  = 9 + 25 \\  \underline{ \boxed{z\overline{z}  = 34}}

♨Rage♨

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