If ∫0af(x)dx=5\int_0^a f(x) dx = 5∫0af(x)dx=5 and ∫0bf(x)dx=8\int_0^b f(x) dx = 8∫0bf(x)dx=8, calculate ∫abf(x)dx\int_a^b f(x) dx∫abf(x)dx.
131313
333
−3-3−3
404040