Published by:
CGP EDU Academic Team
Published on: August 12, 2026
Prove that (1+ sec 2 θ ) (1+sec 4 θ ) (1+sec8 θ ) .......(1+ sec 2 n θ ) = tan 2 n θ cot θ
Text Solution
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CHECK THE SOLUTION.
L.H.S.
......... 
= 
. 
. 
................... 
= 2 n cos 2 θ cos 2 θ cos 4 θ cos 8 θ ............cos 2 n–1 θ cos 2 n θ
= 
. 
= 
= tan(2 n θ ) cot θ
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