Question

which of the following is a singleton x.

A). P={z/x2=49,x E I}
B). Q={Y/y2+5=2y2+4,yEI}
C). R={m/m eI,m3=27}
D). S={n/n2-25=0}.​

Answer 1

Answer:

1. OPTION D
2. BECAUSE IT IS SINGELETON