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SAT
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Math
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Trigonometry & Complex Numbers
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Q)
If
i
=
√
−
1
then
(
i
2
+
i
)
(
i
4
−
i
2
)
=
(
a
)
3
i
(
b
)
3
i
+
1
(
c
)
3
i
−
1
(
d
)
i
+
3
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