Published by:
CGP EDU Academic Team
Published on: August 12, 2026
Let
and
. If
, then
is
.
Text Solution
Verified by ExpertsThe correct answer is:
49
(49)
(cube roots of unity).
Let
.
Calculating:
.
All have
.
Verify:
.
.
Fourth term:
. So
.
Total
.
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