- #1

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[tex]E_x=∫dEcosθ[/tex]

From what I learned in calculus, the dE means with respect to. So when taking an integral you usually have the form [tex]∫y(x)dx[/tex] and the interval is [a,b], which are x values.

Why isn't the integral above in that form then? I mean at the very least, [itex]∫dθcosθ[/itex] would make more sense to me.