KEAM 2012 Math Paper

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Question : 27 of 120

Marks: +1, -0

If z=

−1

2

+i

√3

2

, then 8+10z+7z2 is equal to

−1
2
+i
√3
2
1
2
+i
√3
2
−
1
2
+i
3√3
2
√3
2
i
−
√3
2
i

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