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ryzh [129]
3 years ago
5

Which of the following is a square root of 3(cos(4pi/9)+i sin(4pi/9))

Mathematics
1 answer:
Margaret [11]3 years ago
6 0

Answer:

— 4√16(cos(4π3)+isin(4π3))=2(cos(−π6)+isin(−π6))=√3−i. Explanation: De Moivre's formula tells us that: (cosθ+isinθ)n=cosnθ+isinnθ.

Step-by-step explanation:

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Answer:

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Step-by-step explanation

Divide 40 by 2 for her 2 visits to the bank

\frac{40}{2} = 20 \\

<em>Final Answer: </em>20

 

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goldfiish [28.3K]

Answer:

A. 2.25

Step-by-step explanation:

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18 = 8x (Added 8 on both sides)

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zaharov [31]

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Step-by-step explanation:

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PLEASE SOLVE!! DUE RIGHT NOW!!! WILL MARK BRAINLIEST IF ANSWERED AND CORRECT!!!!!
Agata [3.3K]

Step-by-step explanation:

a) The measure of angle 7 is also 47 degrees. We know this because angle 5 and angle 7 are vertical angles and vertical angles are always equal.

b and c) Since we know that a straight line has an angle of 180 degrees and that the sum of angle 5 and angle 6 will add to this, we can use that to find the value of x like this:

47+2x-5=180\\47-5+2x=180\\42+2x=180\\42-42+2x=180-42\\2x=138\\\frac{2x}{2} =\frac{138}{2} \\x=69

5 0
2 years ago
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Answer:

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