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Grade: 12th pass
        
Please solve this question and tell me and explain also. 
9 months ago

Answers : (1)

Arun
22784 Points
							
Dear student
 
we can write it as
 
1 – cos4A = (1 – cos2A) (1 + cos2A)
 
 = sin2A (1 + cos2A)
 
hope it helps
9 months ago
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