1.

निम्लिखित समुच्चयों के घात समयच्ची (power set) ज्ञात कीजिए। `A={phi}," " B= {phi,{phi}}," "(iii) C={1,2{3,4}}`

Answer» `P(A) = {X:X subeA}={X:X= phi,X=A}={phi,{phi}}`
`P(B)={X:XsubeB}={phi,{phi},B,{ {phi}}}`
`P(C)={X:X subeC}={phi,{1},{2},{ {3,4},{1,2},{1,{3,4}},{2{3,4}},C}`


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