Question

8.
Which one of the following is a singleton set?
(i) {x/x2 = x, XER}
(ii) {X/X2 = -1, XER}
(a) (0)
(b) (ii)
(iii) {x/2x = 0;
(c) (iii)
(iv) {X/3x + 2 = 0 x€N}
(d) (iv)​

Answer 1

Answer:

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