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$\int_{\frac{x}{4}}^{0} \sec^{2} x e^{\tan} d x =$ কত?

ϵ^{- \frac{π}{4}}

\frac{1 - ϵ}{3}

1 - \frac{1}{ϵ}

\frac{π}{4}

ANS : 3

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