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geniusboy [140]
2 years ago
15

Party Sweets makes baked goods that can be

Mathematics
1 answer:
Ne4ueva [31]2 years ago
5 0
7 for each I did it on e 2020 yesterday
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Hi, I am new to this website :) I'm currently taking an online trig class on De Moivre's theorem and I don't understand it at al
Vladimir [108]
De Moivre's theorem uses this general formula z = r(cos α + i<span> sin α) that is where we can have the form a + bi. If the given is raised to a certain number, then the r is raised to the same number while the angles are being multiplied by that number.

For 1) </span>[3cos(27))+isin(27)]^5 we first apply the concept I mentioned above where it becomes

[3^5cos(27*5))+isin(27*5)] and then after simplifying we get, [243 (cos (135) + isin (135))] 

it is then further simplified to 243 (-1/ √2) + 243i (1/√2) = -243/√2 + 243/<span>√2 i
and that is the answer.

For 2) </span>[2(cos(40))+isin(40)]^6, we apply the same steps in 1)

[2^6(cos(40*6))+isin(40*6)],

[64(cos(240))+isin(240)] = 64 (-1/2) + 64i (-√3 /2)

And the answer is -32 -32 √3 i

Summary:
1) -243/√2 + 243/√2 i
2)-32 -32 √3 i

7 0
3 years ago
Need help with this
stira [4]

Answer: 5,356 is the right asnwer

Step-by-step explanation: I did the paper hope this helps :)

6 0
3 years ago
6. Evaluate the following expression: 10 + 4(6-2)<br> А. 56<br> B. 82<br> С. 18<br> D. 26
irakobra [83]

Answer:

D. 26

Step-by-step explanation:

10+4(6-2)\\10+4(4)\\10+16\\26

7 0
2 years ago
Read 2 more answers
What is the chemical formula for the molecule modeled?
adelina 88 [10]
The correct answer is A
8 0
3 years ago
Read 2 more answers
Someone check my answers please
Anna007 [38]

Answer:

its right

Step-by-step explanation:

4 0
3 years ago
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