complex numbers

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Simplify the expression.


4ix2

4i2x2

-4×2

-4ix2

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Simplify the expression.

(5 – 2i) + (3 + 4i)


10i

8 + 2i

8 + 6i

2 + 2i

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Simplify the expression.

(3 – 4i) – (1 – 4i)


2 -8i

2

2 + 8i

4

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Simplify the expression

(1 – 4i)(2 + i)


4 – 8i

-2 – 7i

2 – 11i

6 – 7i

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Simplify the expression.
(-3 – i)(2 – 2i)


-8 + 4i

-4 + 4i

-6 + 6i

-6 + 2

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Simplify the expression.

square root of negative 14 end root space • square root of negative 26 end root


i square root of 364

square root of 364

negative i square root of 364

negative square root of 364

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Simplify the expression.

fraction numerator 2 space minus space i over denominator 3 space minus space 4 i end fraction


fraction numerator 2 space plus space i over denominator 5 end fraction

2 space plus space i

fraction numerator 2 space plus space 5 i over denominator 13 end fraction

fraction numerator 2 space plus space 5 i over denominator 5 end fraction


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Simplify the expression.

fraction numerator 5 space minus space i square root of 3 over denominator 5 space plus space i square root of 3 end fraction


fraction numerator 17 space minus space i square root of 3 over denominator 8 end fraction

fraction numerator 14 space minus space i square root of 3 over denominator 11 end fraction

fraction numerator 11 space minus space 5 i square root of 3 over denominator 14 end fraction

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Simplify the expression.

i15


1

-1

i

-i

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Which of the following is equal to 1?


i2

i16

i21

i26