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If alpha=int0^1(e^9x+3tan^((-1)x))((12+9...

If `alpha=int_0^1(e^9x+3tan^((-1)x))((12+9x^2)/(1+x^2))dxw h e r etan^(-1)` takes only principal values, then the value of `((log)_e|1+alpha|-(3pi)/4)i s`

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