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Integral of sec ax. e^-iax dx how do we get this answer

Integral of sec ax. e^-iax dx how do we get this answer

Grade:12th pass

1 Answers

Shashank Singh
askIITians Faculty 57 Points
3 years ago
put e^(-iax)= cos ax – i sin ax
sec ax.(cosax-i sin ax)= 1- i tan ax
so if we integrate 1-i tan ax
we get the integral as x- i/a( log IsecaxI + c

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