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2. Let 1 a8 A = 1 a2 6 0 6 1 (a) Use Sylvesters criterion (see study guide set of values of the parameter a for which the ma

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at8 A = 6 1 Using Slestrs citevon pprinipl mus be posihe . That is minors Ca) ar-8 (a Pl a48o a10a+16- i o 2 a+10q 41S a =- +

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