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Grade: 11
        
Value of {1-Cos(4A)/ Sec^2(2A)} + {1+ Cos(4A)/ Cosec^2 (2A)-1}
 
 
2 years ago

Answers : (1)

Arun
23032 Points
							
Dear Student
 
= 2 sin²(2A) * cos²(2A) + [2 cos²(2A)/cot²(2A)]
= 2 sin²(2A)* cos²(2A) + 2 sin²(2A)
= 2 sin²(2A) [cos²(2A) +1]
 
Regards
Arun (askIITians forum expert)
2 years ago
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