Published by:
CGP EDU Academic Team
Published on: August 11, 2026
Increasing Product series
cos α · cos 2 α · cos2 2 α ......cos(2 n –1 α ) = 
If α ≠ n π = 
if α = 2k π = – 
, if α
= (2k + 1) π , Where, k ∈ I (Integer)
(i) 
has the value –
Correct Answers for Comprehension Sub-Questions
Text Solution
Verified by ExpertsThe correct answer is:
CHECK THE SOLUTION.
(i) (ii) (iii)
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