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Complex Numbers Part 1

Section: Mathematics
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Question : 34 of 100
 
Marks: +1, -0
Let i=√−1. If ‌
(−1+i√3)21
(1−i)24
+‌
(1+i√3)21
(1+i)24
=k and n=[|k|] be the greatest integral part of |k|.
Then,
n+5
∑
j=0
(j+5)2−
n+5
∑
j=0
(j+5) is equal to ............. .
[24 Feb 2021 Shift 2]
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