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True or false4. The interval notation [-1,12) is equivalent to saying -1≤1x<12.

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1x can also be taken as x. Thus, the expression is same as

-1≤x<12

The numbers satisfying this inequality are between 1 and 12

[ indicates that - 1 is inclusive hence, we used ≤

) indicates that 12 is not inclusive hence, we used )

Thus, the statement is true

User Djibril
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