1.

The set builder form of (6,12) is a){x:x in RR, 6ltxle12}b){x:x in RR, 6ltxlt12}c){x:x in RR, 6lexle12}d){x:x in RR, 6lexlt12}

Answer»

`{X:x in RR, 6ltxle12}`
`{x:x in RR, 6ltxlt12}`
`{x:x in RR, 6lexle12}`
`{x:x in RR, 6LEXLT12}`

ANSWER :B


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