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Mariana [72]
2 years ago
9

Write the product using exponents. 2⋅2⋅2⋅n⋅n Using exponents, the product is ?

Mathematics
1 answer:
Blababa [14]2 years ago
3 0
The answer is 8n^2

2x2 is 4 x 2 is 8 two n variables so multiple it by 2 and you get your answer
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Suppose z = . What is z4?<br><br> on EDGE 2020
Free_Kalibri [48]

Answer:

z^{4} = \cos \frac{8\pi}{3}+i\,\sin \frac{8\pi}{3}

Step-by-step explanation:

We can determine the power of a complex number by the De Moivre's Theorem, which states that for all z = r\cdot (\cos \theta + i\,\sin\theta), where a, b \in \mathbb{R}, the power of the complex number is:

z^{n} = r^{n}\cdot (\cos n\theta + i\,\sin n\theta) (1)

Where:

r - Magnitude of the complex number, dimensionless.

\theta - Direction of the complex number.

If we know that r = 1, n = 4 and \theta = \frac{2\pi}{3}, then the fourth power of the complex number is:

z^{4} = 1^{4}\cdot \left[\cos\left(\frac{8\pi}{3} \right)+i\,\sin\left(\frac{8\pi}{3}\right)\right]

z^{4} = \cos \frac{8\pi}{3}+i\,\sin \frac{8\pi}{3}

5 0
3 years ago
Read 2 more answers
If the value of 2x3 is 2, then what is the value of x?
Oduvanchick [21]
ANSWER: x = 1/3

WORKING OUT:

2 times x times 3 = 2

6 times x = 2

x = 1/3
5 0
3 years ago
Please show your work! Brainliest if you do
TiliK225 [7]

Answer:

\frac{3x+4}{2x-2}

Step-by-step explanation:

*photo attached*

8 0
3 years ago
Solve the system of equations using subtraction. <br> 2x - 4y = - 12 <br>2x + y = 13​
alisha [4.7K]
First can you change
2x + y = -12
To have y as the subject

Looks like y = ???
7 0
3 years ago
Whats the answer for this problem 8x+y=-16 <br> -3x+y=-5
marissa [1.9K]
<span><span> {x,y} = {-7/4,-2}</span> 

Explanation:
</span>System of Linear Equations entered :
 [1] 8x+y=-16
 [2] -3+y=-5

Equations Simplified or Rearranged :<span><span> 
  [1] 8x + y = -16 </span><span> 
  [2] y = -2

Regards
Sonny
</span></span><span>
</span>
8 0
3 years ago
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