plot(
   expr, (x, 0, 2*pi), ylim=(-10, 10),
   n=1e04, detect_poles="symbolic", eps=5e-05, grid=False
)
# Expected:
## Plot object containing:
## [0]: cartesian line: 5*sin(x) + 1/cos(10*x) for x over (0, 2*pi)