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OpenStudy (anonymous):
Interval help!
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OpenStudy (anonymous):
OpenStudy (anonymous):
Would it be [-oo,1)(3,oo] ?
OpenStudy (anonymous):
exclude the infinities
OpenStudy (anonymous):
So (1,3) ?
OpenStudy (anonymous):
NOOO infinities should be applied because of the arrows. They should also be closed with parentheses since they're infinities
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OpenStudy (anonymous):
So you had it right the first time but use parentheses
OpenStudy (anonymous):
We can't define what is infinity is so it will be in open interval like (-oo, 1)U (3,oo)
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