Functions and Relations Pre-Calculus

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great refreshing math courses! and I'm going to watch the whole series! however just a comment regarding the interval from 11.32min, I guess there is a unintentional mistake as it should be (-inf, -5]U[-5, +inf). Best regards

incryst
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Seems like u made a mistake on the second way of writing the notations for the negative 5

tashagomez
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11:58 is that a formula that is used everytime or is that a question

saeedabdul
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first, I thought after this Video I will have full Understanding about domain and range but it just getting harder.

ksofficerofficer