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Bezzdna [24]
3 years ago
15

28= -2u u= ? Basically, U equals what?

Mathematics
1 answer:
vredina [299]3 years ago
4 0
Answer: U=-14
Explanation:
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Z1 = 5(cos25˚+isin25˚)

Z2  = 2(cos80˚+isin80˚)

Z1.Z2  = 5(cos25˚+isin25˚). 2(cos80˚+isin80˚)

Z1.Z2  = 10{(cos25˚cos80˚ + isin25˚cos80˚+i^2sin25˚sin80˚) }

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Z1.Z2 = 10(cos(25˚+80˚) +isin(25˚+80˚)

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