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OpenStudy (anonymous):
what is a back ward 3/E mean in math?
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OpenStudy (anonymous):
Do you know what topic this is specifically?
OpenStudy (anonymous):
Statistics? Calculus?
OpenStudy (anonymous):
A simple google doesn't get you anywhere
OpenStudy (anonymous):
Algebra 2b
Directrix (directrix):
"There exists"
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Directrix (directrix):
∃ means "there exist" or "There are"
OpenStudy (anonymous):
what do they do in a equation?
OpenStudy (anonymous):
Oh that's what you meant by backwards E, no?
Directrix (directrix):
"∃ n ∈ N: n is even" is an example. Read as "There exists an n in the set of Natural Numbers such that n is even."
OpenStudy (anonymous):
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