integrate(sin(x), x)

integrate(sin(x), (x, 0, pi))

integrate(1/(1 + x^2), x)

integrate(1/(1 + x^2), (x, 0, 1))

show(_)

show(integrate((3 * x + 5) / (x^2 + x + 1), x))

integrate(x^-(1/5), (x, 4, 5))

show(_)

(__).n()

integrate((log(x) / x)^2, (x, 1, oo))

