Question

check wheather the following sets is empty or non- empty. also write the cardinality of each set.
(i) A= { x:x € Z & x² -1 =0
(ii) B = { x: x € N & 0 < x < 1}
(iii) C= { x:x € z & 4x² -1 =0}
(iv) D= { x:x € Q & 4 x² -1 =0}
(v) E= { x:x is an irrational number & x² -1 =0 }
(vi) F = { n/ n+1, n € N}​

Answer 1

Step-by-step explanation:

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