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STATEMENT-1 : int(0)^(oo)(dx)/(1+e^(x))=...

STATEMENT-1 : `int_(0)^(oo)(dx)/(1+e^(x))=ln2-1`
STATEMENT-2 : `int_(0)^(oo)(sin(tan^(-1)))/(1+x^(2))dx=pi`
STATEMENT-3 : `int_(0)^(pi^(2)//4)(sinsqrt(x))/(sqrt(x))dx=1`

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TFT

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D

FFT

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