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4 years ago

Multiply the complex numbers: (4 + 6i)(1∕2 + 3i)

Mathematics

1 answer:

Firlakuza [10]4 years ago

6 0

Answer:

B) 20 + 15i

Step-by-step explanation:

So first you need to foil the equation (a + bi)(c + di) = ac +adi +bic +bidi. then you need to combine like terms. Remember that i^2 = 1 and i = i.

Then write your final answer in the terms a + bi

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dezoksy [38]

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Answer: Angle C and angle F

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Problem 12

Answer: 100 degrees

Explanation: Solve the equation E+F = 180, where F = 80 found earlier above. You should get E = 100.

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Problem 13

Answer: 80 degrees

Explanation: This was mentioned earlier in problem 11.

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Problem 14

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