1.

यदि `A={2,5,6,7}, B={0,2,5,7}` तथा `C={1,2,3,5,6,}` तो सिद्ध कीजिए की- `Auu(BnnC)=(AuuB)nn(AuuC)`

Answer» बायाँ पक्ष `A=uu(BnnC)={2,5,6,7}uu={2,5,6,7}uu[{0,2,5,7,8}nn{1,2,3,5,6}]`
`={2,5,6,7}uu{2,5}`
`={2,5,6,7}" "...(i)`
दायाँ पक्ष `=(AuuB)nn(AuuC)=[{2,5,6,7}uu{0,2,5,7,8}]-uu{2,5,6}uu{1,2,3,5,6}`
`{0,2,5,6,7,8} nn{1,2,3,5,6,7}`
`={2,5,6,7}" "...(ii)`
समीकरण (i) व (ii) से
`Auu(BnnC)=(AuuB)nn(AuuC)`


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