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julsineya [31]
3 years ago
8

Express the quantities below in a+bi form, and graph the corresponding points on the complex plane. If you use one set of axes,

be sure to label each point appropriat (1+i)-(1-i), (1+i)(1-i), i(2-i)(1+2i).

Mathematics
1 answer:
iogann1982 [59]3 years ago
3 0

Answer:

Step-by-step explanation:

As we know that

      Complex number written as

   Z = x  +  i y

x is the real part (on real axis).

y is the imaginary part(on imaginary axis).

For  (1+i)-(1-i):

Z=   (1+i)-(1-i)

Z = 1 + i - 1 + i

Z=2 i

So x= 0 ,y= 2

For (1+i)(1-i):

Z= (1+i)(1-i) = 1 - i²                         ( i²  = 1)

Z = 1 - (-1) = 2

So x= 2 and y= 0

For  i(2-i)(1+2i):

Z=  i(2-i)(1+2i) = (2 i-  i²) (1+2i)

Z=  (2i + 1) (1+2i)

Z = 2i +1 +4i² + 2i

Z= 4i + 1 - 4

Z= - 3+ 4 i

x = - 3  and y =4

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Answer:

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Step-by-step explanation:

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3 years ago
Part A: Maria rented a coat at $285 for 3 days. If she rents the same coat for 6 days, she has to pay a total rent of $510. Writ
Amiraneli [1.4K]
First to make the equation you need to make the ordered pairs that will come out to be (3,285) and (6,510) 
Second you plug those ordered pairs in the slope formula, you will end with 
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-----------=  -------- = 75 that's your slope
   6-3           3
Now you plug it in the point slope form
y-285=75(x-3)
y-285=75x-225
  +285      +285
-----------------------
y=75x+60 is your equation 
f(x)=75x+60 in function notation
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7 0
3 years ago
I need answers whoever give answers I will give brainliest this is just part one btw
rodikova [14]

P: x + 2 = 9

   x = 7 # Subtract 2 from both sides

E: q - 5 = 12

    q = 17 # Add 5 to both sides

H: 6 + m = 27

    m = 21 # Subtract 6 from both sides

Y: t - 14 = -3

   t = 11 # Add 14 to both sides

J: u - 7.5 = 2.4

   u = 9.9 # Add 7.5 to both sides

I: n + 7 = -20

  n = -27 # Subtract 7 to both sides

G: d - 1 = -16

   d = -15 # Add 1 to both sides

A: b - 40 = -25

   b = 15 # Add 40 to both sides

M: 18 + w = 7

    w = -11 # Subtract 18 from both sides

L: k + 8.3

   k = 11.5 # Subtract 8.3 from both sides.

4 0
2 years ago
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3 0
3 years ago
Branly and 100 points
Tasya [4]

Answer:

for every x in the domain of f, f -1[f(x)] = x, and

for every x in the domain of f -1, f[f -1(x)] = x

Step-by-step explanation:

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2 years ago
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