Can someone explain the notation of the parts formula pls.,.. it's very very confusing.(adsbygoogle = window.adsbygoogle || []).push({});

int [u dv] = uv - int [v du]

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very confuzing, ... made me think it was the product formula lol. And I still don't understand what does dv and dx and all these d stuff standfor in integrals.

they have those dv = 1dx.. i can understand that,... dv/dx = 1, they just moved dx over , but then they made 1/dx = dv... i got confuzed...

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# Parts formula.

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