- #1

GreenPrint

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## Homework Statement

Hi,

Prove P(AUB|C) = P(A|C)+P(B|C)-P(A∩B|C)

## Homework Equations

## The Attempt at a Solution

I start off from here

[itex]P(AUB|C)=\frac{P(AUB)P(C|AUB)}{P(C)}[/itex]

I don't know where to go from here. Thanks for any help that you can provide.