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prove-that-1-1-x-tan-x-2-dx-




Question Number 100980 by bachamohamed last updated on 29/Jun/20
    prove that  ∫_(−∞) ^(+∞) ((1/(1+(x+tan(x))^2 ))dx)=𝛑
provethat+(11+(x+tan(x))2dx)=π

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