Published by:
CGP EDU Academic Team
Published on: August 12, 2026
If 
, then the value of 
is:
Text Solution
Verified by ExpertsThe correct answer is:
C
Given 
, so 
(primitive cube root of unity) with 
.
From the equation: 
.
Since 
, value of 
has period 3:
Fourth powers: 
.
For 
to 25 : 8 multiples of 3 contribute 
, remaining 17 terms contribute 
.
Total 
.
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