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Answer :

Idowuayomidego

Step-by-step explanation:

p union ( Q union R)

let solve for d elements inside d bracket

p = 1,6,10,14 Q = 1,5,11

R = 3,5,10,11

union means joining elements that is p with R.if there is occurrence just pick one.

(Q u R ) = ( 1,3,5,10,11)

so p u ( Q u R ) = ( 1,3,5,6,10,11,14)

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