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[Solved]: prove that int_(-1)^1 (x^(2)+e^(x ) )d(sgn)=1

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(Solved): prove that \int_(-1)^1 (x^(2)+e^(x ) )d(sgn)=1 Use formula for integration re \int_a^b fd\alpha = ...

prove that

\int_(-1)^1 (x^(2)+e^(x ) )d(sgn)=1

Use formula for integration re

\int_a^b fd\alpha =f\int_a^b d\alpha -\int_a^b d\alpha df

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