Published by:
CGP EDU Academic Team
Published on: August 13, 2026
If 
is a root of the equation 
then number of values of ' 
' is :
Text Solution
Verified by ExpertsThe correct answer is:
C
We are given:
Factor using geometric series idea:
Check:
Yes, it works.
So equation is equivalent to:
The 9th roots of -1:
Exclude 
, which corresponds to 
.
So total valid roots: 
.
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