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Grade: 12 

                        
6 tan 2 x – 2 cos 2 x = cos2x if cos2x = ?
9 years ago

Answers : (2)

Neer Varshney
76 Points 
							
How can you ask the value of cos2x as it is always= cos^(2)x - sin^(2)x??


 
9 years ago
Nirabhra Agrawal
33 Points 
							
Its answer is cos2x = 1/2
9 years ago
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