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maksim [4K]
3 years ago
11

Find the product of the complex numbers (-5+ 8i) and (3 - 8i)

Mathematics
1 answer:
Liula [17]3 years ago
7 0

Answer: 49+64i

Step-by-step explanation:

Concept to know:

i=√-1

i²=-1

i³=-i

i^{4}=1

-------------------------------------

 (-5+8i)(3-8i)

=-15+40i+24i-64i²

=-15+64i-64i²

=-15+64i+64  (remember, i²=-1)

=49+64i

Hope this helps!! :)

Please let me know if you have any question or need further explanation

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Write an equation of the line that is perpendicular to 3x - 4y equals 9 + contains (-4, -5)
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So perpendicular lines have <u>slopes that are negative reciprocals</u> to each other, but firstly we need to find the slope of the original equation. The easiest method to find it is to convert this standard form into slope-intercept.

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3 years ago
Read 2 more answers
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