7217972
Description
Quiz by Rika Grobler, updated more than 1 year ago
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Created by Rika Grobler
almost 8 years ago
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Question 1
Question
\(i^{2}\) =
Answer
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1
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-1
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\(i\)
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\(-i\)
Question 2
Question
\(-i^{2}\)=
Answer
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1
-
-1
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\(i\)
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\(-i\)
Question 3
Question
\(\frac{5}{i}\)=
Answer
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5
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-5
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\(5i\)
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\(-5i\)
Question 4
Question
\( (1+i)^{2}\) =
Answer
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\(2i\)
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\(2+2i\)
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\(-2+2i\)
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2
Question 5
Question
\( (2+5i).(3-2i) \)=
Answer
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\(-4+11i\)
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\(16-19i\)
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\(6-10i\)
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\(16+11i\)
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