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Question

What is (3+i3i)6 equal to, where i=1?

A
1
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B
16
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C
6
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D
2
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Solution

The correct option is A 1
(3+i3i×3+i3+i)6

(3+i)12(31)6

(3+i)12(26)

(1+3i2)6

now,(3i+12=w2)

and w3=1

hence,
w12=((w)3)4=1

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