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find-f-e-x-2-cos-cos-x-dx-




Question Number 37290 by math khazana by abdo last updated on 11/Jun/18
find  f(θ) = ∫_(−∞) ^(+∞)  e^(−x^2 )  cos(cosθx)dx .
$${find}\:\:{f}\left(\theta\right)\:=\:\int_{−\infty} ^{+\infty} \:{e}^{−{x}^{\mathrm{2}} } \:{cos}\left({cos}\theta{x}\right){dx}\:. \\ $$

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