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Why is (-3,6] a better answer than (-3,6)
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Why is (-3,6] a better answer than (-3,6)

User Mads K
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1 Answer

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24 votes

(-3, 6) includes all numbers between -3 and 6 but it does not include -3 and 6.

when you put square parentheses you include the number on the edge

so if an anwser includes all numbers between -3 and 6 and the number 6 it's correct to write (-3,6]

User Doinghun
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