Which expression represents ∫abf(x)dx+∫bcf(x)dx\int_a^b f(x) dx + \int_b^c f(x) dx∫abf(x)dx+∫bcf(x)dx?
∫caf(x)dx\int_c^a f(x) dx∫caf(x)dx
∫ab(f(x)+f(x))dx\int_a^b (f(x) + f(x)) dx∫ab(f(x)+f(x))dx
∫acf(x)dx\int_a^c f(x) dx∫acf(x)dx
∫abf(x)g(x)dx\int_a^b f(x) g(x) dx∫abf(x)g(x)dx