A teacher is writing an exam with 60
1 answer:
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Assuming the variable is x, we can write as
The given interval is from 2 onto infinity, basically describing everything larger than 2. We do not include 2 as part of the interval because of the curved parenthesis. If you had then you would include 2 and you would say
In set builder notation, we can write which is basically a more long-winded way of saying
. The fancy looking R indicates that x is a real number. So it's saying "we have a set of real numbers such that these numbers are greater than 2".