Question: Write the following sets using the roster form: ( a ) { x in Z | 1 0 < = x ^ 2 < 1

Write the following sets using the roster form:
(a){x in Z|10<= x^2<100}(Careful, that is Z, not N!)
(b){x in N|x <=4}(Remember that, in this text anyhow, 0 in N.)

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