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Multiple choice

if A=(0), B =(X:X>15 and x<5), c=(x:x-5=0), D=(x:${ x }^{ 2 }$=25) E=(x :xis a positive integer root of equation ${ x }^{ 2 }$-2x-15 =0, then pair of equal sets is:

  1. $A,B$
  2. $B,C$
  3. $C,D$
  4. $C,E$
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