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irina [24]
3 years ago
12

5 over 2 + 4i please help! i can only get to 10 - 20i over 4 + 16​

Mathematics
1 answer:
alexandr402 [8]3 years ago
8 0

Answer:

if you meant the equation like this , (5 / 2) + (4 * i) then the answer would be 2.5 + 4 i

hope its correct

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If a+b=1, find N=a^3+b^3+3ab
mart [117]

Answer: 1

<u>Step-by-step explanation:</u>

a + b = 1

a³ + b³ = (a + b)(a² - ab + b²)         <em>formula for a perfect cube</em>

a³ + b³ + 3ab = (a + b)(a² - ab + b²) + 3ab

                            ↓

                     =     1     (a² - ab + b²) + 3ab

                     =           a² - ab + b² + 3ab

                     =           a² + 2ab + b²         <em>this is a perfect square</em>

                     =           (a + b)(a + b)

                                      ↓       ↓

                     =              (1)      (1)

                     =                   1

4 0
3 years ago
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Can someone help me answer this
VikaD [51]
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Can You Please Help Me ​
Illusion [34]

Answer:

A:   YES

B:   NO

C:   YES

Step-by-step explanation:

uhm, if you really need an explanation, here it goes

the opposite of an integer is its opposite value or if its a postitve integer the oposite woud be the negative integer, and thats all i got, hope this helps.

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astra-53 [7]

subtract 3 from both sides:

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Flauer [41]

Answer:

6x+8

Step-by-step explanation:

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3 years ago
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