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Sholpan [36]
3 years ago
13

Multiply and simplify the following complex numbers: (5 – 5i) . (-3+5i)

Mathematics
2 answers:
Rama09 [41]3 years ago
7 0

Step-by-step explanation:

(5 – 5i) . (-3+5i)

=-15+25i+15i-25i²

=-25i²40i-15

vladimir1956 [14]3 years ago
5 0

Answer:

-25i^2+10i-15

Step-by-step explanation:

(5 – 5i) . (-3+5i)

foil

1)5*-3=-15

2)5*5i=25i

3)-5i*-3=15i

4)-5i*5i=-25i^2

put that all together

-25i^2+15i+25i-15

simplify

-25i^2+40i-15

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To find the measure of the s angle que are going use the cosine law because we know all the sides of the triangule:

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<span>A midpoint divides a line or a segment into two equal parts. If D is the midpoint of the segment AC and C is the midpoint of segment DB, what is the length of the segment AB, if AC = 3 cm.</span>

 

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