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Grade: 11 

                        
[{1-cot^2(α-45°)}/{1+cot^2(α-45°)} + cos(α/2)cot4α] cosec(9α/2)=cosec4a Prove it...
2 years ago

Answers : (1)

Arun
24742 Points 
							
Dear Adarsh
 
!st question is incomplete. Please check and repost it.
 
You can attach an image too.
 
I will be happy to help you.
 
Regards
Arun
2 years ago
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