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Grade: 9
        
SinA. Sin3A+sin3A.sin7A+sin5A.sin15A/sinA.cos3A+sin3A.cos7A+sin5A.cos15A
3 months ago

Answers : (1)

Vikas TU
9095 Points
							
Hiii 
 
(Cos2x – cos4x + cos4x – Cos10x + Cos10x – Cos20x ) / (Sin4x – Sin2x + Sin 10x – Sn 4x + sin20x – sin 10x )
 
Cos 2x – cos20x / sin 20x – sin2x 
 
=> Tan 11x
 
Hope thishelps 
Cheers 
 
3 months ago
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