Show that maximization of the class separation criterion given by (4.23) with respect tow, using a Lagrange multiplier to enforce the constraint wTw= 1, leads to the result that is∝(m2−m1).

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Answer to your question: a. the fundamental theorem of algebra tells you that the equation will have two complex roots since the degree of the polynomial is 2. the roots are ​ x=1±i7√2 .number of roots=degree of polynomialhere, degree of polynomial is 2 so number of roots will be 2.hope it *_*