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क्या निम्नलिखित समुच्चय युग्म समान है?
(1) `A={x:x` शब्द FOLLOW में अक्षर है।}
`B={y:y` शब्द WOLF में अक्षर है।}
(B) `A={2,3}`
`B={x:x,x^(2)+6x+9=0` का हल है}

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`A={F,O,L,W}`
`B={F,OL,W}`
अत A व B दोनों समुच्चय समान है।
(2) `A={2,3}`
तथा `x^(2)+6x+9=0`
`(x+3)^(2)=0`
`rArr x=-3,-3`
`:. B={-3,-3}`
`rArr A` व B समुच्चय समान नहीं है।

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