A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 4 years ago
Can someone try to explain Descartes' Rule of Signs to me?
anonymous
 4 years ago
Can someone try to explain Descartes' Rule of Signs to me?

This Question is Closed

dumbcow
 4 years ago
Best ResponseYou've already chosen the best response.1i can try..its basically counting the sign changes in coefficients For f(x) the number of sign changes represents the max number of positive zeros lets say this is n. Then the possible positive zeros are n, n2, n4 ... until you get to 0 For f(x) the number of sign changes represents the max number of negative zeros lets say this is m. Then the possible positive zeros are m, m2, m4 ... until you get to 0 The degree or highest exponent tells you the total number of zeros a function has any left over zeros must be imaginary, call these i so any combination of n+m+i must equal the degree. sometimes it helps to set up a chart i can do an example if you like

dumbcow
 4 years ago
Best ResponseYou've already chosen the best response.1make sense? need example ?
Ask your own question
Sign UpFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.