Question: Show that the equation x3 15x + c = 0 has at most one root in the interval [ 2, 2].

Show that the equation x3 – 15x + c = 0 has at most one root in the interval [– 2, 2].

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Let fx 15x c for r in 22 If f has two real roots a and b in 2 2 with a b then fa fb 0 Since ... View full answer

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