1.

For a polynomial g(x) with real coefficients, let mg denote the number of distinct real roots of g(x). Suppose S is the set of polynomial with real coefficients defined by S=[(x2−1)2(a0+a1x+a2x2+a3x3):a0,a1,a2,a3∈R]For a polynomial f, let f′ and f′′ denote first and second order derivatives, resepectively. Then the minimum possible value of (mf′+mf′′), where f∈S, is

Answer» For a polynomial g(x) with real coefficients, let mg denote the number of distinct real roots of g(x). Suppose S is the set of polynomial with real coefficients defined by

S=[(x21)2(a0+a1x+a2x2+a3x3):a0,a1,a2,a3R]

For a polynomial f, let f and f′′ denote first and second order derivatives, resepectively. Then the minimum possible value of (mf+mf′′), where fS, is


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