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Integrate[Log[Sec[x] + Tan[x]], x] ==
(I*Pi*x - Pi*Log[1 - I*E^(I*x)] -
2*x*Log[1 - I*E^(I*x)] - Pi*Log[1 + I*E^(I*x)] +
2*x*Log[1 + I*E^(I*x)] +
Pi*Log[-Cos[(Pi + 2*x)/4]] +
Pi*Log[Sin[(Pi + 2*x)/4]] +
2*x*Log[Sec[x] + Tan[x]] -
(2*I)*PolyLog[2, (-I)*E^(I*x)] +
(2*I)*PolyLog[2, I*E^(I*x)])/2
Integrate[Log[Sec[x] + Tan[x]], x] ==
I x I x
(I Pi x - Pi Log[1 - I E ] - 2 x Log[1 - I E ] -
I x I x
Pi Log[1 + I E ] + 2 x Log[1 + I E ] +
Pi + 2 x Pi + 2 x
Pi Log[-Cos[--------]] + Pi Log[Sin[--------]] +
4 4
2 x Log[Sec[x] + Tan[x]] -
I x
(2 I) PolyLog[2, -I E ] +
I x
(2 I) PolyLog[2, I E ]) / 2
Time to compute: 0.18 second
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