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We have f(x) = A*x^3 + B*x^2 + C*x + D
What is the condition to be satisfied by the parameters A, B, C and D for f(x) doesn’t have local high and low limits?
Last edited by KerimF (2023-11-23 19:38:34)
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Bob
Children are not defined by school ...........The Fonz
You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei
Sometimes I deliberately make mistakes, just to test you! …………….Bob
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I thought that such exercise is for students, not teachers
Anyway, I guess you meant by your last line that the condition to be satisfied by the parameters A, B, C and D for f(x) doesn’t have local high and low limits is:
B^2 - 3*A*C ≤ 0
And the parameter (D) may have any value.
Thank you.
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