Complex Numbers
ACT · Flashcards · Recall
ACT · FLASHCARDS
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QUESTION
What is
i
4
i^4
i
4
equal to?
QUESTION
What is
(
a
+
b
i
)
(
a
−
b
i
)
(a+bi)(a-bi)
(
a
+
bi
)
(
a
−
bi
)
equal to?
QUESTION
What is
z
‾
‾
\overline{\overline{z}}
z
equal to for any complex number
z
z
z
?
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ANSWER
z
z
z
. Taking conjugate twice returns original number.
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