1+x |
1-x |
A.M∪N=P | B.∁RM=P∪N | C.P∩N=M | D.∁R(P∩N)=∅ |
1+x |
1-x |
1+x |
1-x |
A.A=B | B.A⊊B | C.B⊊A | D.A∩B=∅ |
log2(x2-3x-3) |
A.(1)(2)(3) | B.(1)(3) | C.(1)(2) | D.(2)(3) |
A.F∩G=Φ | B.F=G | C.F⊂≠G | D.G⊂≠F |
A.{y|y=x2} | B.{y|y=2x} | C.{y|y=lgx} | D.∅ |
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