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how to find nature of roots in a four degree polynomial

how to find nature of roots in a four degree polynomial

Grade:12th pass

2 Answers

Roshan Mohanty
64 Points
10 years ago

use rolles theorem
find f''''''(x)=0 has how many roots. .accordingly u will get the max real roots of f(x)=0 

Akash Kumar Dutta
98 Points
10 years ago

apply descartes theorem for some help.

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