Calculate ∫011ex+e−xdx\int_0^1 \frac{1}{e^x + e^{-x}} dx∫01ex+e−x1dx.
arctan(e)−π/4\arctan(e) - \pi/4arctan(e)−π/4
ln(e)−0\ln(e) - 0ln(e)−0
arctan(e)\arctan(e)arctan(e)
π/4\pi/4π/4