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3 years ago

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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Someone please help myst teacher never explains the hw

harina [27]

Answer:

Prob gonna be prob b

Step-by-step explanation:

3 0

3 years ago

6 + (9 − 1) 2 ÷ 4 ⋅ 1 over 2 whole to the power of 4

Bas_tet [7]

Answer:

625

Step-by-step explanation:

1. parenthesis first, so it simplifies to ((6+(8)2÷4*1)/2)^4

2. pemdas says that multiplication and division go before addition and subtraction, so ((6+(8)2÷4*1)/2)^4 becomes ((6+16÷4*1)/2)^4 ---> ((6+4)/2)^4

3. then simplify inside of the parenthesis, so it becomes 5^4, which is 625

6 0

2 years ago

FInd the unknown value of:<br> 18 = 3 + x<br> x = ?

stira [4]

the answer to the equation is x=15

8 0

2 years ago

What is the length of the side of a right triangle that has a side length of 12in and a hypotenuse that measures 15ft

Viktor [21]

Answer: 14.96ft

Step-by-step explanation:

1. To solve this exercise you must apply the Pythagorean Theorem, which is:

$a=\sqrt{b^{2}+c^{2}}$

Where $a$ is the hypotenuse, and $b$ and $c$ are the other sides of the triangle.

2. You have that the sides given measures 12 inches. 1 feet has 12 inches. Therefore, this side measures 1 feet.

2. Then, when you solve for one of the sides and substitute the values given in the problem into the formula shown above, you obtain that the length of the side of the rigth triangle is:

$b=\sqrt{(15ft)^{2}-(1ft)^{2}}$

$b=4\sqrt{14}=14.96ft$

7 0

2 years ago

Read 2 more answers

6 = 3(3x-6) - 3(3x - 8)

frez [133]

Answer:

Pull out like factors

3x - 6 = 3 • (x - 2)

Pull out 6

6 • ( 1 +( (-1) ))

This equations is a tautology or an Identity which means it's always true.

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers