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Question 4

Suppose the cubic x3 – px + q has three distinct real roots when p > 0 and q > 0 then which one of the following is true?


a) The cubic has maximum at both  and  

b) The cubic has minimum at  and maximum at

c) The cubic has minimum at  and maximum at

d) The cubic has minimum at both and at

Your Answer

ABCD   CLEAR