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Amanda [17]
3 years ago
14

If x = (10 − 3i) and y = (3 − 10i), then xy= and xy=

Mathematics
2 answers:
Darina [25.2K]3 years ago
5 0

Answer:

xy = -109i

Step-by-step explanation:

Given that:

x = 10 - 3i

y = 3-10i

where, i is the imaginary part

We have to find xy.

xy=(10-3i)(3-10i)

⇒(10-3i)(3-10i) = 30-100i-9i+30i^2

We know that: i^2 = -1

then;

⇒(10-3i)(3-10i) = 30-100i-9i-30=-109i

⇒xy =-109i

therefore, the product of x and y is, -109i

kipiarov [429]3 years ago
4 0

xy=(10-3i)(3-10i)=30-100i-9i-30=-109i

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