MHB Why Does ∫ln(x) dx Include dx?

[markosheehan]

find ∫ln x dx. i can't work this out but i know its integration. why is there a dx here. there is usually no dx when i am differentiating something

 

[Prove It]

find ∫ln x dx. i can't work this out but i know its integration. why is there a dx here. there is usually no dx when i am differentiating something

All integrals are written with dx at the end, it's read as "the integral of the function ln(x) with respect to x".

And all derivatives have the same, have you never noticed that "dx" in dy/dx?