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Grade: 12
        
It is given that the graph of y = x4+ax3+bx2+cx+d (where a; b; c; d
are real) has at least 3 points of intersection with the x-axis. Prove
that either there are exactly 4 distinct points of intersection, or one of
those 3 points of intersection is a local minimum or maximum.
2 years ago

Answers : (1)

Saurabh Koranglekar
askIITians Faculty
6641 Points
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2 months ago
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