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find dy/dx when y=(cosx – isinx)(cos3x – isin3x)(cos5x – isin5x)....(cos2007x – isin2007)

find dy/dx when y=(cosx – isinx)(cos3x – isin3x)(cos5x – isin5x)....(cos2007x – isin2007)

Grade:12th pass

1 Answers

Arun
25763 Points
2 years ago
Dear Student
 
we can write it as 
 
y = e^-ix e^-3ix...........e^-2007ix
 
y = e-i(1+3+5+..........+2007)x
 
now you can do it

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