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If `E\ a n d\ E_2` are independent evens, write the value of `P(E_1uuE_2)nn( E_c1nn Ec_2)dot`

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`P{(E1∪E2)∩(E_c1∩E_C2)}`
`={E1∩E_C1∩E_C2}∪{E2∩(E_c1∩E_C2)}`
`=P(ϕ∪ϕ)=0`
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