3. Find the points of relative extrema of the following functions on the specified domain: (a) f(x) := |x² – 1| for -4

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Extracted text: 3. Find the points of relative extrema of the following functions on the specified domain: (a) f(x) := |x² – 1| for -4 < 4,="" (c)="" h(x)="" :="xx²" –="" 12|="" for="" –="" 2="">< x="">< 3,="" (b)="" g(x)="" :="1" –="" (x="" –="" 1)1="" for="" 0=""><>< 2,="" 1/3="" (d)="" k(x)="" :="x(x" –="" 8)3="" for="" 0="">< x="">< 9.="" 4.="" let="" a1,="" az2,.="" .="" ,="" a,="" be="" real="" numbers="" and="" let="" f="" be="" defined="" on="" r="" by="" f(x)="" :="S`(a" -="" x)?="" for="">