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Zolol [24]
4 years ago
11

Ahhh help please!!!

Mathematics
2 answers:
Katyanochek1 [597]4 years ago
8 0

Answer:

3-2i; 9+6i;-10-30i

Step-by-step explanation:

A x+y = 6 + 2i + (-3-4i) = 6-3+2i-4i=3-2i

B. x-y = 6 + 2i -(-3-4i) = 6 + 3 +2i+4i = 9 + 6i

C. x* y= (6 +2i) (-3-4i) = 6*-3 +6*-4i +2i*-3 +2i*-4i= -18 -24i-6i +8= 8-18 -30i= -10-30i [note: i*i = -1]

lubasha [3.4K]4 years ago
7 0
It’s 3-2i; 9+6i;-10-30i
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The plans for a rectangular deck call for the width to be 10 feet less than the length. Sam wants the deck to have an overall pe
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Given that plans for a rectangular deck call for the width to be 10 feet less than the length

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7 0
3 years ago
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Elan Coil [88]
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