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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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